The call scenario is:
I call from the Lync system to a CS1000 on 5.5 with an up to date DEP list over SIP.
The phone rings at the far end and my CPND can be seen on the phone but when the far end answers, I get a reorder tone and they get dead air.
The call flow Is Lync to Audiocodes to NRS to CS1000 with MGCs.
The Audiocodes generates a 503 not available for the far end but its because the far end CS1000 is not negotiating a streaming codec which should be G711u
I can make the same call from my local CS1000 on 6.0 to the CS1000 on 5.5 and the call is successful.
Also, I can call from Lync to my local CS1000 on 6.0 and vice versa and the call is successful.
The issue is only with the system on 5.5.
I have multiple CS1000 systems on 5.5 and the issue is the same on all of them.
Any advice would be helpful
I call from the Lync system to a CS1000 on 5.5 with an up to date DEP list over SIP.
The phone rings at the far end and my CPND can be seen on the phone but when the far end answers, I get a reorder tone and they get dead air.
The call flow Is Lync to Audiocodes to NRS to CS1000 with MGCs.
The Audiocodes generates a 503 not available for the far end but its because the far end CS1000 is not negotiating a streaming codec which should be G711u
I can make the same call from my local CS1000 on 6.0 to the CS1000 on 5.5 and the call is successful.
Also, I can call from Lync to my local CS1000 on 6.0 and vice versa and the call is successful.
The issue is only with the system on 5.5.
I have multiple CS1000 systems on 5.5 and the issue is the same on all of them.
Any advice would be helpful
