07-11-2023 08:18 PM
We are establishing SIP trunk between CUCM and Unity for 7 digit voicemail dial out. Everything is configured right with configuration between them only SIP trunk establishment are not in service with 503 error.
Version: CUCM 12.5 SU7 Unity 12.5 SU7
Troubleshooting: Both server are able to ping each other
We did check the DNS server: Forward and reverse lookup are present and configured
I have also added each other certificate on them as trusted (CallManager-trust).
07-11-2023 08:21 PM
CUCM:
admin:utils network ping ucx-pub.mkmg.com
PING ucx-pub.mkmg.com (192.168.200.14) 56(84) bytes of data.
64 bytes from ucx-pub.mkmg.com (192.168.200.14): icmp_seq=1 ttl=64 time=0.095 ms
64 bytes from ucx-pub.mkmg.com (192.168.200.14): icmp_seq=2 ttl=64 time=0.094 ms
64 bytes from ucx-pub.mkmg.com (192.168.200.14): icmp_seq=3 ttl=64 time=0.063 ms
64 bytes from ucx-pub.mkmg.com (192.168.200.14): icmp_seq=4 ttl=64 time=0.078 ms
--- ucx-pub.mkmg.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3004ms rtt min/avg/max/mdev = 0.063/0.082/0.095/0.015 ms
admin:utils network host ucx-pub.mkmg.com
Local Resolution: Nothing found
External Resolution:
ucx-pub.mkmg.com has address 192.168.200.14
admin:utils network connectivity ucx-pub.mkmg.com
This command can take up to 3 minutes to complete. Continue (y/n)?y
Running test, please wait ... .
Test failed with ucx-pub: Unknown hostname/ipAddress
Unity: admin:utils network ping midhud-ucm-pub.mkmg.com
PING midhud-ucm-pub.mkmg.com (192.168.200.10) 56(84) bytes of data.
64 bytes from midhud-ucm-pub.mkmg.com (192.168.200.10): icmp_seq=1 ttl=64 time=0.128 ms
64 bytes from midhud-ucm-pub.mkmg.com (192.168.200.10): icmp_seq=2 ttl=64 time=0.077 ms
64 bytes from midhud-ucm-pub.mkmg.com (192.168.200.10): icmp_seq=3 ttl=64 time=0.072 ms
64 bytes from midhud-ucm-pub.mkmg.com (192.168.200.10): icmp_seq=4 ttl=64 time=0.407 ms
--- midhud-ucm-pub.mkmg.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3007ms rtt min/avg/max/mdev = 0.072/0.171/0.407/0.138 ms
admin:utils network host midhud-ucm-pub.mkmg.com
Local Resolution: Nothing found
External Resolution: midhud-ucm-pub.mkmg.com has address 192.168.200.10
admin:utils network connectivity midhud-ucm-pub.mkmg.com
This command can take up to 3 minutes to complete. Continue (y/n)?y
Running test, please wait ... . Test failed with midhud-ucm-pub: Unknown hostname/ipAddress
We did check the DNS server: Forward and reverse lookup are present and configured Also I have added each other certificate on them as trusted (CallManager-trust).
07-11-2023 09:07 PM
Have you completed the configuration on Unity ? Phone system, port group and ports... Also check the network Connectivity on SIP port.
https://www.youtube.com/watch?v=uR9iaGqZFyQ
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