CT Cloud - Connectivity Requirements

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Overview:

In general, very little setup is required to get a site ready for CT Cloud Voice, SIP, and Communicator. The following information can be used for more restrictive environments or for troubleshooting purposes.

Network (CT Cloud Voice and Communicator)

Note:

IF YOUR NETWORK ROUTER OR FIREWALL HAS A SIP APPLICATION LAYER GATEWAY (SIP ALG) YOU MUST DISABLE IT. REFER TO YOUR FIREWALL OR ROUTER VENDOR FOR MORE INFORMATION.

SIP protocol for Desktop phone: UDP
SIP signaling for desktop phone: 15060
DTMF: RFC2833
Ports for RTP (audio): UDP 16384 thru 65535

SIP protocol for Accession desktop: UDP
SIP signaling for Accession desktop: 5100
DTMF: RFC2833
Ports for RTP (audio): UDP 16384 thru 65535

SIP protocol for Accession mobile: TCP
SIP signaling for Accession mobile: 443
DTMF: RFC2833
Ports for RTP (audio): TCP 16384 thru 65535

FIREWALL ADJUSTMENTS FOR ALLOWED IP ADDRESSES (if necessary for your infrastructure):

  • 205.196.170.145 (signaling and RTP)

  • 205.196.171.145 (signaling and RTP)

  • 205.196.170.163 (SSL for phone provisioning)

  • 205.196.170.176 (SSL for phone provisioning)

  • 205.196.171.183 (IM/SMS if using chat or SMS via Accession)

  • 205.196.171.184 (IM/SMS if using chat or SMS via Accession)

SIP

  1. Digest

    1. Primary: 205.196.170.135

    2. Secondary: 205.196.171.135

    3. Protocol: UDP (default) or TCP

    4. Signaling port: 5060

    5. RTP ports: UDP/TCP 16384 thru 65535

  2. IP Auth

    1. Primary: 205.196.170.136

    2. Secondary: 205.196.171.136

    3. Protocol: UDP (default) or TCP

    4. Signaling port: 5060

    5. RTP ports: UDP/TCP 16384 thru 65535

Provisioning:

Although desk phones should provision automatically, you may want to configure DHCP option 66 in your network DHCP server. Option 66 should be set to https://commportal.calltower.com/sip-ps