Cisco 26xx, 36xx, 37xx, and AS5300 support gateway-controlled T.38 with MGCP from Cisco IOS Software Release 12.2(11)T. However, it is not supported in the Cisco CallManager network until Cisco IOS Software Release 12.2(11)T3 where "forced" T.38 mode has been added.
N/A with Cisco CallManager.
When using Fax/Modem pass-through between Catalyst 6000/VG248 and Cisco IOS gateways, you need:
Voice Gateway Routers: Cisco IOS Software Release 12.2.11T or later is recommended
For Catalyst 6624, the loads A002030139S1 and A00203010041 are recommended.
For Catalyst 6608, the loads D004030145S1 and D00403010047 are recommended.
3.2.(2c)SpD include loads D004030145S1 and A002030139S1.
3.1(4)SpA and 3.2(2c)SpF include D00403010047 and A00203010041.
You must have Cisco CallManager version 3.1.3a or later to use fax pass-through mode on the Cisco ICS 7750.
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...