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