---
title: "CT Cloud SIP - Checking DNS SRV Record"
slug: "ct-cloud-sip-checking-dns-srv-record"
updated: 2026-09-18T16:30:14Z
published: 2026-09-18T16:30:14Z
canonical: "learn.calltower.com/ct-cloud-sip-checking-dns-srv-record"
---

> ## 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 SIP - Checking DNS SRV Record

Checking a DNS SRV record

CallTower SIP trunks and HPBX phones typically use DNS SRV records to reach the service platforms. These are treated differently than a normal DNS A record. You cannot ping an SRV record. Below are the steps to test the 7006581001.siptrunking.appiaservices.com record on a Windows machine.

Open a command prompt.

Type in nslookup and hit Enter.

Type set type=all and hit Enter.

Type in *sip.*udp.7006581001.siptrunking.appiaservices.com and hit Enter.

If the record is built correctly, you should see results like below. SRV records resolve to one or more A records. These A records, along with associated IP addresses are shown in bold italics below.

> set type=all

> *sip.*udp.7006581001.siptrunking.appiaservices.com.

Server: slimer.isphone.net

Address: 69.54.70.15

*sip.*udp.7006581001.siptrunking.appiaservices.com SRV service location:

priority = 20

weight = 50

port = 5060

svr hostname = 7006581001.siptrunking2.appiaservices.com

*sip.*udp.7006581001.siptrunking.appiaservices.com SRV service location:

priority = 10

weight = 50

port = 5060

svr hostname = 7006581001.siptrunking1.appiaservices.com

siptrunking.appiaservices.com nameserver = ns2.appiaservices.com

siptrunking.appiaservices.com nameserver = ns3.appiaservices.com

siptrunking.appiaservices.com nameserver = ns4.appiaservices.com

7006581001.siptrunking1.appiaservices.com internet address = 205.196.170.135

7006581001.siptrunking2.appiaservices.com internet address = 205.196.171.135

ns2.appiaservices.com internet address = 69.54.70.15

ns3.appiaservices.com internet address = 69.54.75.28

ns4.appiaservices.com internet address = 206.80.64.251