--- title: "CT Cloud Voice Supported Devices" slug: "ctcloud-voice-supported-devices" tags: ["calltower", "public"] updated: 2026-10-13T20:49:08Z published: 2026-10-13T20:49:08Z canonical: "learn.calltower.com/ctcloud-voice-supported-devices" --- > ## Documentation Index > Fetch the complete documentation index at: https://learn.calltower.com/llms.txt > Use this file to discover all available pages before exploring further. # CT Cloud Voice Supported Devices by jillian.west@calltower.com The devices listed below are supported for auto provisioning on CT Cloud Voice. If a device is not listed below, it is not supported. This list will continue to be updated as support is added or removed for additional or end-of-life devices. *****Please review CallTower's policy for Non-Supported Devices** > [!NOTE] > **IMPORTANT NOTE:** > > Even though a phone may be shown as supported, there may be cases where a phone will not meet a customer’s requirements. > > Please check with CallTower SA before recommending a phone model for a particular customer application. | **Device** | **User Guide** | **Other Resources** | **Notes** | | --- | --- | --- | --- | | Networking Devices (routers, switches, etc.) | | See CallTower for information | | MasterFax Analog Adapter | | | **BYOE devices NOT supported** | | CT Cloud Communicator Desktop | [Quick Start Guide](https://calltower.us.document360.io/learn/ct-cloud-voice-user-ct-cloud-communicator-overview) | [Additional Guides](/v1/docs/ct-cloud-voice-user-communicator-quick-guides) | | | CT Cloud Communicator Mobile | [Quick Start Guide](https://files.mtstatic.com/site_8908/5641/0?Expires=1784838311&Signature=CkoOQU7OepugcDoXOnSHwZBsoxbqVkcu3JYmngY9QKlD5EVHWAXpIj3TDRtlP84ErvUfIsUaz2qhlnPAtNnX93sMr2GDHw2QG~pXsu8dGeiG1PzlKcoso4giTH81T2yiEQmuvORfApv4SKiyXF-vBbR1U6Dlx9Ktp5WaBmO1REo_&Key-Pair-Id=APKAJ5Y6AV4GI7A555NA) | [Additional Guides](/v1/docs/ct-cloud-voice-user-communicator-quick-guides) | | | Algo 8128 IP Visual Alerter | [User Guide](https://docs.algosolutions.com/docs/8128-user-guide) | [Product Sheet](https://www.algosolutions.com/wp-content/uploads/2024/06/8128-Product-Sheet.pdf) | | | Algo 8138 IP Color Visual Alerter | [User Guide](https://docs.algosolutions.com/docs/8138-ip-color-visual-alerter-user-guide) | [Product Sheet](https://www.algosolutions.com/wp-content/uploads/2024/06/8138-Product-Sheet.pdf) | | | Algo 8180G2 SIP Audio Alerter | [User Guide](https://www.algosolutions.com/wp-content/uploads/2021/09/8180_G2-User-Guide.pdf) | [Product Sheet](https://www.algosolutions.com/wp-content/uploads/2022/12/Algo_8180_PS.pdf) | The first generation Algo 8180 is not supported. | | Algo 8186 SIP Horn Speaker | [User Guide](https://www.algosolutions.com/wp-content/uploads/2021/08/8186-User-Guide.pdf) | [Product Sheet](https://www.algosolutions.com/wp-content/uploads/2021/09/8186-SIP-Horn-Speaker-Brochure.pdf) | | | Algo 8188 SIP Ceiling Speaker | [User Guide](https://www.algosolutions.com/wp-content/uploads/2021/08/8188-User-Guide_compressed.pdf) | [Product Sheet](https://www.algosolutions.com/wp-content/uploads/2021/09/8188-SIP-Ceiling-Speaker-Brochure.pdf) | | | Algo 8301 Paging Adapter & Scheduler | [User Guide](https://www.algosolutions.com/wp-content/uploads/2021/12/8301-User-Guide.pdf) | [Product Sheet](https://www.algosolutions.com/wp-content/uploads/2021/09/8301-Paging-Adapter-Brochure.pdf) | | | Grandstream GXW4216 | [User Guide](https://documentation.grandstream.com/wp-content/uploads/2021/12/GXW42xx_usermanual.pdf) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_gxw42xx_english.pdf) | | | Grandstream GXW4224 | [User Guide](https://documentation.grandstream.com/wp-content/uploads/2021/12/GXW42xx_usermanual.pdf) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_gxw42xx_english.pdf) | | | Grandstream GXW4232 | [User Guide](https://documentation.grandstream.com/wp-content/uploads/2021/12/GXW42xx_usermanual.pdf) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_gxw42xx_english.pdf) | | | Grandstream GXW4248 | [User Guide](https://documentation.grandstream.com/wp-content/uploads/2021/12/GXW42xx_usermanual.pdf) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_gxw42xx_english.pdf) | | | Grandstream HT801 (version 1) | [User Guide](https://documentation.grandstream.com/knowledge-base/ht80x-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_ht801_english.pdf) | End of Sale | | Grandstream HT801 V2 | [User Guide](https://documentation.grandstream.com/knowledge-base/ht80x-v2-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/HT801%20V2/Datasheet_HT801_V2_English.pdf) | | | Grandstream HT802 (version 1) | [User Guide](https://documentation.grandstream.com/knowledge-base/ht80x-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_ht802_english.pdf) | End of Sale | | Grandstream HT802 V2 | [User Guide](https://documentation.grandstream.com/knowledge-base/ht80x-v2-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/HT802%20v2/Datasheet_HT802_V2_English.pdf) | | | Grandstream HT812 (version 1) | [User Guide](https://documentation.grandstream.com/knowledge-base/ht81x-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_ht812_english.pdf) | End of Sale | | Grandstream HT812 V2 | [User Guide](https://documentation.grandstream.com/knowledge-base/ht81x-v2-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/HT812%20v2/datasheet_ht812%20V2_english.pdf) | | | Grandstream HT813 | [User Guide](https://documentation.grandstream.com/knowledge-base/ht813-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_ht813_english.pdf) | | | Grandstream HT814 (version 1) | [User Guide](https://documentation.grandstream.com/knowledge-base/ht81x-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_ht814_english.pdf) | End of Sale | | Grandstream HT814 V2 | [User Guide](https://documentation.grandstream.com/knowledge-base/ht81x-v2-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/HT814%20v2/datasheet_ht814%20v2_english.pdf) | | | Grandstream HT818 (version 1) | [User Guide](https://documentation.grandstream.com/knowledge-base/ht818-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_ht818_english.pdf) | End of Sale | | Grandstream HT818 V2 | [User Guide](https://documentation.grandstream.com/knowledge-base/ht81x-v2-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/HT818%20v2/datasheet_ht818%20v2_english.pdf) | | | Poly CCX 400 | [User Guide](https://docs.poly.com/bundle/ccx-opensip-ug-current/page/before-you-begin.html) | [Datasheet](https://www.poly.com/content/dam/www/products/phones/ccx/ccx-400/doc/ccx-400-ds-en.pdf) \| [CCX Comparison](https://www.poly.com/content/dam/www/products/phones/ccx/doc/ccx-open-sip-comparison-guide-en.pdf) | | | Poly CCX 500 | [User Guide](https://docs.poly.com/bundle/ccx-opensip-ug-current/page/before-you-begin.html) | [Datasheet](https://www.poly.com/content/dam/www/products/phones/ccx/ccx-400/doc/ccx-400-ds-en.pdf) \| [CCX Comparison](https://www.poly.com/content/dam/www/products/phones/ccx/doc/ccx-open-sip-comparison-guide-en.pdf) | End of Life: 11/30/2024 | | Poly CCX 600 | [User Guide](https://docs.poly.com/bundle/ccx-opensip-ug-current/page/before-you-begin.html) | [Datasheet](https://www.poly.com/content/dam/www/products/phones/ccx/ccx-400/doc/ccx-400-ds-en.pdf) \| [CCX Comparison](https://www.poly.com/content/dam/www/products/phones/ccx/doc/ccx-open-sip-comparison-guide-en.pdf) | | | Poly CCX 700 | [User Guide](https://docs.poly.com/bundle/ccx-opensip-ug-current/page/before-you-begin.html) | [Datasheet](https://www.poly.com/content/dam/www/products/phones/ccx/ccx-400/doc/ccx-400-ds-en.pdf) \| [CCX Comparison](https://www.poly.com/content/dam/www/products/phones/ccx/doc/ccx-open-sip-comparison-guide-en.pdf) | | | Poly Edge B10 | [User Guide](https://docs.poly.com/bundle/edge-b-ug-current/page/concept-rmc-fhg-rpb.html) | [Datasheet](https://www.poly.com/content/dam/www/products/phones/edge-b-series/doc/poly-edge-b-series-ds-en.pdf) \| [Edge B Comparison](https://www.poly.com/content/dam/www/products/phones/edge-b-series/doc/poly-edge-b-series-comparison-guide-en.pdf) | | | Poly Edge B20 | [User Guide](https://docs.poly.com/bundle/edge-b-ug-current/page/concept-rmc-fhg-rpb.html) | [Datasheet](https://www.poly.com/content/dam/www/products/phones/edge-b-series/doc/poly-edge-b-series-ds-en.pdf) \| [Edge B Comparison](https://www.poly.com/content/dam/www/products/phones/edge-b-series/doc/poly-edge-b-series-comparison-guide-en.pdf) | | | Poly Edge B30 | [User Guide](https://docs.poly.com/bundle/edge-b-ug-current/page/concept-rmc-fhg-rpb.html) | [Datasheet](https://www.poly.com/content/dam/www/products/phones/edge-b-series/doc/poly-edge-b-series-ds-en.pdf) \| [Edge B Comparison](https://www.poly.com/content/dam/www/products/phones/edge-b-series/doc/poly-edge-b-series-comparison-guide-en.pdf) | | | Poly Edge E100 | [User Guide](https://docs.poly.com/bundle/edge-e-user-guide-current/page/before-you-begin.html) | | | | Poly Edge E220 | [User Guide](https://docs.poly.com/bundle/edge-e-user-guide-current/page/before-you-begin.html) | [E220 Datasheet](https://www.poly.com/content/dam/www/products/phones/edge-e-series/edge-e100-e200/doc/poly-edge-e220-series-ds-en.pdf) | Supports Bluetooth | | Poly Edge E300 | [User Guide](https://docs.poly.com/bundle/edge-e-user-guide-current/page/before-you-begin.html) | [E300 Series Datasheet](https://www.poly.com/content/dam/www/products/phones/edge-e-series/edge-e300/doc/poly-edge-e300-series-ds-en.pdf) | | | Poly Edge E320 | [User Guide](https://docs.poly.com/bundle/edge-e-user-guide-current/page/before-you-begin.html) | [E300 Series Datasheet](https://www.poly.com/content/dam/www/products/phones/edge-e-series/edge-e300/doc/poly-edge-e300-series-ds-en.pdf) | Supports Bluetooth | | Poly Edge E350 | [User Guide](https://docs.poly.com/bundle/edge-e-user-guide-current/page/before-you-begin.html) | [E300 Series Datasheet](https://www.poly.com/content/dam/www/products/phones/edge-e-series/edge-e300/doc/poly-edge-e300-series-ds-en.pdf) | Supports Bluetooth & Wi-Fi | | Poly Edge E400 9 | [User Guide](https://docs.poly.com/bundle/edge-e-user-guide-current/page/before-you-begin.html) | [E400 Series Datasheet](https://www.poly.com/content/dam/www/products/phones/edge-e-series/edge-e400/doc/poly-edge-e400-series-ds-en.pdf) | | | Poly Edge E450 9 | [User Guide](https://docs.poly.com/bundle/edge-e-user-guide-current/page/before-you-begin.html) | [E400 Series Datasheet](https://www.poly.com/content/dam/www/products/phones/edge-e-series/edge-e400/doc/poly-edge-e400-series-ds-en.pdf) | Supports Bluetooth & Wi-Fi | | Poly Edge E500 9 | [User Guide](https://docs.poly.com/bundle/edge-e-user-guide-current/page/before-you-begin.html) | [E500 Series Datasheet](https://www.poly.com/content/dam/www/products/phones/edge-e-series/doc/poly-edge-e500-series-ds-en.pdf) | | | Poly Edge E550 9 | [User Guide](https://docs.poly.com/bundle/edge-e-user-guide-current/page/before-you-begin.html) | [E500 Series Datasheet](https://www.poly.com/content/dam/www/products/phones/edge-e-series/doc/poly-edge-e500-series-ds-en.pdf) | Supports Bluetooth & Wi-Fi | | Poly Trio 8300 | | [Datasheet](https://www.poly.com/content/dam/www/products/phones/trio/trio-8300/doc/poly-trio-8300-ds-en.pdf) | | | Poly Trio 8500 | | [Datasheet](https://www.poly.com/content/dam/www/products/phones/trio/trio-8500/doc/poly-trio-8500-ds-en.pdf) | | | Poly Trio 8800 | | [Datasheet](https://www.poly.com/content/dam/www/products/phones/trio/trio-8800/doc/poly-trio-8800-ds-en.pdf) | | | Yealink CP925 10 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=963965d9ac74f942) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20231115/202311151229066757f6405b949038b27186138d634e8.pdf) | | | Yealink CP935W 10 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=9e9acabb9f06d147) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20231115/202311151226367438f11e5a040749d917f2f226a189d.pdf) | | | Yealink CP965 10 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=aa9731c652e209af) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20231115/202311151017456185bb4d991442eb9a94293c54559ba.pdf) | | | Yealink SIP-T30/P | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=a09146d4eb3cb5cf) | [T30](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/2023112305590648675858d16474090fe47a8ac635a62.pdf) \| [T30P](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/202311230553287877223e2ef4b6ab3aa4e316e30fb94.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/20231123022812451258e511b45a5952501f6c9ddc7ee.pdf) | | | Yealink SIP-T31/P/G | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=a09146d4eb3cb5cf) | [T31](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/20231123035651652cb579a6c4f0e9ba33f5f70d39ab7.pdf) \| [T31P](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/2023112303543154901b520054c6ca4ed996da3b45cbe.pdf) \| [T31G](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/2023112303034214566162231453696b6fc4d2c5dd572.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/20231123022812451258e511b45a5952501f6c9ddc7ee.pdf) | | | Yealink SIP-T33P/G | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=a09146d4eb3cb5cf) | [T33P](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/20231123025640994d8f4258e41058824811e843fe816.pdf) \| [T33G](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/20231123024408796954f9a7e4af886ccfb9eb87871fd.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/20231123022812451258e511b45a5952501f6c9ddc7ee.pdf) | | | Yealink SIP-T34W | [User Guide](https://support.yealink.com/product-detail/01985ec5-a492-739a-8199-b42d98fc86d4) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20240515/20240515030020144f25ea26e429ba4cd1b3af0f316b2.pdf) \| [T34W Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20241010/202410100400022454be9.pdf) | | | Yealink SIP-T42U 6 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=8147bf6582f2a862) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20231122/20231122031119602644986244b2ea391064cf9b0a28e.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20240204/202402040855167303286a979457fa5fb9aec9faaaec7.pdf) | | | Yealink SIP-T43U 2 6 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=8147bf6582f2a862) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20231122/20231122031405305f97d755e42b18b58c8f80f36f808.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20240204/202402040855167303286a979457fa5fb9aec9faaaec7.pdf) | | | Yealink SIP-T44U 2 6 | [User Guide](https://support.yealink.com/product-detail/01985ec4-cbb1-74ac-9ab5-8db5371d23e3) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20240204/20240204085610331319cbef457d9da253e7d04190dc.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20240204/202402040855167303286a979457fa5fb9aec9faaaec7.pdf) | | | Yealink SIP-T44W 2 | [User Guide](https://support.yealink.com/product-detail/01985ec5-18c0-7a06-b46a-de16fb048525) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20240204/20240204090230441ac881f60408e901f7630044e9c17.pdf) \| [T44W Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20240204/2024020409031319f382b71241a1a44f050b392290fc.pdf) | | | Yealink SIP-T46U 2 6 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=8147bf6582f2a862) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20231122/20231122031518532f604545a46c2baed67ea1301c3f4.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20240204/202402040855167303286a979457fa5fb9aec9faaaec7.pdf) | | | Yealink SIP-T48U 2 6 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=8147bf6582f2a862) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20231122/202311220317097845e1ddac942669f6c1cc23e9852bc.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20240204/202402040855167303286a979457fa5fb9aec9faaaec7.pdf) | | | Yealink SIP-T53 3 4 5 6 7 10 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=975f306f5b602bd5) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20231115/2023111510134478868c9e5c349d1891850def6885597.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20231115/20231115101405344b00d4da04a199f7d4a3584ec00d2.pdf) | | | Yealink SIP-T53W 3 7 10 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=975f306f5b602bd5) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20231115/2023111510113380531dddcb44837a134f5cd4954ba7e.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20231115/20231115101405344b00d4da04a199f7d4a3584ec00d2.pdf) | | | Yealink SIP-T54W 3 7 10 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=975f306f5b602bd5) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20231115/202311151009213612934e97944bd99e9b5cd904e8e18.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20231115/20231115101405344b00d4da04a199f7d4a3584ec00d2.pdf) | | | Yealink SIP-T57W 3 7 10 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=975f306f5b602bd5) | [Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20231115/2023111510051320007a33c974fa7a4f9a3bcebfd473a.pdf) \| [Series Flyer](https://www.yealink.com/website-service/attachment/product_resource/documents/20231115/20231115101405344b00d4da04a199f7d4a3584ec00d2.pdf) | | | Yealink SIP-T58W 3 7 10 | [User Guide](https://support.yealink.com/en/portal/knowledge/show?id=64819af96a27da76bd06cd33) | [Datasheet](https://support.yealink.com/en/portal/knowledge/show?id=649250876a27da76bd070137) | | | Yealink SIP-W70B 1 10 | [W70 User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=a6a9bfdfe55088d0) | [Base](https://www.yealink.com/website-service/attachment/product_resource/documents/20231122/202311220258257752e6dbdae41ce934d60a5e90827a3.pdf) \| [W56H](https://www.yealink.com/website-service/attachment/product_resource/documents/20230726/2023072603323565724715eec4de193847d763c5d16d1.pdf) \| [W57R](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/20231123073903677c231fc224dc4a754273fd74134ce.pdf) \| [W59R](https://www.yealink.com/website-service/attachment/product_resource/documents/20231122/20231122030629119f40dbf948ab9883c60a2b56e863.pdf) \| [W73H](https://www.yealink.com/website-service/attachment/product_resource/documents/20231122/20231122032331893ddbde75f48e0a3c933333481bd50.pdf) \| [W78H](https://www.yealink.com/website-service/attachment/product_resource/documents/20231123/2023112307445585865d7f41f4702a16106a984743a97.pdf) \| [CP935W](https://www.yealink.com/website-service/attachment/product_resource/documents/20231222/202312220242585857f7961dc452da74c11c58ff65e36.pdf) \| [T54W with DD10K](https://www.yealink.com/website-service/attachment/product_resource/documents/20230726/20230726034613469dbc988694e1a99d470862480e2c6.pdf) | | 1. Compatible with W56H, W57R, W59R, W73H, and W78H handsets, CP935W Conference Phone, and the T54W Desktop Phone via DD10K Adapter 2. Compatible with EXP43 sidecar 3. Compatible with EXP50 sidecar 4. Supports BT41 Bluetooth adapter 5. Supports WF40 WiFi adapter 6. Supports WF50 WiFi adapter 7. Supports DD10K DECT USB dongle (functionality varies between device series) - [DD10K Datasheet](https://www.yealink.com/website-service/attachment/product_resource/documents/20230726/20230726034613469dbc988694e1a99d470862480e2c6.pdf) 8. Compatible with EM50 sidecar 9. Compatible with Poly Edge E Expansion Module 10. Yealink support is limited to devices with firmware x.86.x.x. We are unable to guarantee service for devices on firmware x.87.x.x or later. ## Recently Retired Devices (Internal Note) The following models are no longer supported, but may still be able to be autoprovisioned on CT Cloud Voice. Additional in Metaswitch is required to facilitate provisioning of these devices. In the event a device in the list below does not provision, the fallback should be to provide the customer with the SIP credentials, as per the [CT Cloud Voice Non-Supported Devices](/v1/docs/ct-cloud-voice-non-supported-devices) article. CallTower cannot provide ongoing support for any device below; this includes, but is not limited to: - Device unable to autoprovision - Device losing registration - Calls dropping - Audio issues (one-way audio, poor call quality, etc) - Device feature(s) not working - Any other issue that may be outside of the SIP account and other SIP info listed above Troubleshooting for non-supported devices is limited to validating correct SIP messaging or response from the CT Cloud Voice platform. Once an issue has been determined to be caused by the behavior of a non-supported device, the customer is responsible for pursuing resolution with their hardware vendor. | **Device** | **User Guide** | **Other Resources** | **Notes** | | --- | --- | --- | --- | | Algo 8028 SIP Doorphone * | | | This EOL is the first generation Algo 8180, not the second generation of the model (8028G2). | | Algo 8180 SIP Audio Alerter | [User Guide](https://www.algosolutions.com/wp-content/uploads/2021/09/8180_G2-User-Guide.pdf) | [Product Sheet](https://www.algosolutions.com/wp-content/uploads/2022/12/Algo_8180_PS.pdf) | This EOL pertains to the first generation Algo 8180. The second generation model (8180G2) is supported. | | Grandstream HT801 (version 1) | [User Guide](https://documentation.grandstream.com/knowledge-base/ht80x-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_ht801_english.pdf) | Device is EoS and will be removed from supported list (above) in the coming months. | | Grandstream HT802 (version 1) | [User Guide](https://documentation.grandstream.com/knowledge-base/ht80x-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_ht802_english.pdf) | Device is EoS and will be removed from supported list (above) in the coming months. | | Grandstream HT812 (version 1) | [User Guide](https://documentation.grandstream.com/knowledge-base/ht81x-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_ht812_english.pdf) | Device is EoS and will be removed from supported list (above) in the coming months. | | Grandstream HT814 (version 1) | [User Guide](https://documentation.grandstream.com/knowledge-base/ht81x-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_ht814_english.pdf) | Device is EoS and will be removed from supported list (above) in the coming months. | | Grandstream HT818 (version 1) | [User Guide](https://documentation.grandstream.com/knowledge-base/ht818-user-guide/) | [Datasheet](https://www.grandstream.com/hubfs/Product_Documentation/datasheet_ht818_english.pdf) | Device is EoS and will be removed from supported list (above) in the coming months. | | Poly OBi300 ATA | | [Datasheet](https://www.poly.com/content/dam/www/products/phones/obi/obi300/doc/obi-300-ds-en.pdf) | End of Life: 09/30/2022 | | Poly OBi302 ATA | | [Datasheet](https://www.poly.com/content/dam/www/products/phones/obi/obi302/doc/obi-302-ds-en.pdf) | End of Life: 09/30/2022 | | Poly OBi312 ATA | | [Datasheet](https://www.poly.com/content/dam/www/products/phones/obi/obi312/doc/obi312-ds-en.pdf) | End of Life: 09/30/2022 | | Polycom VVX 101 | | | End of Life: 03/31/2022 | | Polycom VVX 201 | | | End of Life: 03/31/2022 | | Polycom VVX 300 | | | | | Polycom VVX 301 | | | End of Life: 03/31/2022 | | Polycom VVX 310 | | | | | Polycom VVX 311 | | | End of Life: 03/31/2022 | | Polycom VVX 400 | | | | | Polycom VVX 401 | | | End of Life: 03/31/2022 | | Polycom VVX 410 | | | | | Polycom VVX 411 | | | End of Life: 03/31/2022 | | Polycom VVX 500 | | | | | Polycom VVX 501 | | | End of Life: 06/30/2021 | | Polycom VVX 600 | | | | | Polycom VVX 601 | | | End of Life: 06/30/2021 | | Poly VVX 150 | [User Guide](https://docs.poly.com/bundle/vvx-ip-ug-6-3-1/page/c-vvx-userguide-before-you-begin.html) | [Datasheet](https://www.poly.com/content/dam/www/products/phones/vvx/vvx-150/doc/vvx-150-ds-en.pdf) | End of Life: 06/30/2023 | | Poly VVX 250 | [User Guide](https://docs.poly.com/bundle/vvx-ip-ug-6-3-1/page/c-vvx-userguide-before-you-begin.html) | [Datasheet](https://www.poly.com/content/dam/www/products/phones/vvx/vvx-250/doc/vvx-250-ds-en.pdf) | End of Life: 11/30/2024 | | Poly VVX 350 | [User Guide](https://docs.poly.com/bundle/vvx-ip-ug-6-3-1/page/c-vvx-userguide-before-you-begin.html) | [Datasheet](https://www.poly.com/content/dam/www/products/phones/vvx/vvx-350/doc/vvx-350-ds-en.pdf) | End of Life: 11/30/2024 | | Poly VVX 450 | [User Guide](https://docs.poly.com/bundle/vvx-ip-ug-6-3-1/page/c-vvx-userguide-before-you-begin.html) | [Datasheet](https://www.poly.com/content/dam/www/products/phones/vvx/vvx-450/doc/vvx-450-ds-en.pdf) | End of Life: 11/30/2024 | | Poly VVX D230 | | [Datasheet](https://www.poly.com/content/dam/www/products/phones/vvx/vvx-d230/doc/poly-vvx-d230-dect-iphone-ds-en.pdf) | End of Life: 12/29/2023 | | Yealink CP860 | | | End of Life: 02/18/2019 | | Yealink CP920 | [User Guide](https://support.yealink.com/en/portal/docDetail?documentCode=96f343036b680631) | [Datasheet](https://www.yealink.com/upfiles/products/datasheet/Yealink-CP920-Datasheet.pdf) | [End of Life: 06/30/2022](https://www.yealink.com/en/product-detail/conference-phone-cp920) | | Yealink CP960 | User Guide | Datasheet | [End of Life: 06/30/2022](https://www.yealink.com/en/product-detail/conference-phone-cp960) | | Yealink SIP-T19P | | | End of Life: 09/30/2015 | | Yealink SIP-T19P_E2 | | | End of Life: 09/30/2021 | | Yealink SIP-T20P | | | End of Life: 01/01/2015 | | Yealink SIP-T21P | | | End of Life: 06/30/2015 | | Yealink SIP-T21P_E2 | | | End of Life: 09/30/2021 | | Yealink SIP-T22P | | | End of Life: 12/31/2015 | | Yealink SIP-T23P | | | End of Life: 09/30/2021 | | Yealink SIP-T26P | | | End of Life: 12/31/2015 | | Yealink SIP-T27P | | | End of Life: 02/01/2018 | | Yealink SIP-T27G | | | End of Life: 09/30/2021 | | Yealink SIP-T28P | | | End of Life: 12/31/2015 | | Yealink SIP-T29G | | | End of Life: 03/31/2021 | | Yealink SIP-T40P | | | End of Life: 09/30/2021 | | Yealink SIP-T40G | | | End of Life: 09/30/2021 | | Yealink SIP-T41P | | | End of Life: 04/01/2020 | | Yealink SIP-T41S | | | End of Life: 03/31/2022 | | Yealink SIP-T42S | | | End of Life: 03/31/2022 | | Yealink SIP-T46G | | | End of Life: 04/01/2020 | | Yealink SIP-T46S | | | End of Life: 03/31/2022 | | Yealink SIP-T48G | | | End of Life: 04/01/2020 | | Yealink SIP-T48S | | | End of Life: 03/31/2022 | | Yealink SIP-T52S | | | End of Life: 03/31/2019 | | Yealink SIP-T54S | | | End of Life: 03/31/2019 | | Yealink SIP-T56A | | | End of Life: 03/31/2020 | | Yealink W60B | | | End of Life: 09/30/2018 | | Grandstream GXW4004 | | | | | Grandstream GXW4008 | | | | | Grandstream HT701 | | | | | Grandstream HT702 | | | | | Grandstream HT704 | | | | - Does NOT support Transport Layer Security (TLS) A telephony service that operates over the internet, allowing users to make and receive calls using cloud technology. Session Initiation Protocol, is the technology that starts, manages, and ends internet-based phone calls and video meetings between people and devices. A specific service offering from CallTower that provides cloud-based voice communication solutions. A telecommunications platform that provides hosted PBX services, enabling voice and data communication over IP networks. Analog Telephone Adapter (ATA) is a device that allows traditional telephones to connect to a digital phone service.