do you use the full E1 or are there any restrictions like: only channels 1-10 will be used.
The channel usage should be configured on the PBX and the voice gateway consistently.
Second it could be a bug, which has been resolved in IOS 12.3(9):
Symptoms: A network side router may disconnect a call and display the following cause code:
Cause i = 0x8286 - Channel unacceptable
Conditions: This symptom is observed on a Cisco 3640 router that has a high density voice network module (NM-HDV) and a BRI voice interface card (VIC) and that is running Cisco IOS Release 12.2. The symptom is not platform-specific and may also occur in other releases.
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...
If you have 2 ISR routers, one acting as Failover, do we need to have both the same number of SRST licenses on the 2 routers?
No. You will only need the SRST licenses on the primary router. Because this feature...