I have Callmanager 220.127.116.1100-12 with H323 gateways, gatekeepers for ICM/CVP routing, and PRI's for PSTN. We are in the process of removing physical fax machines and placing them on a FaxCom application. We also have an old FaxCom that the connection between Callmanager and the FaxCom are analog lines. This new FaxCom has a SIP trunk between Callmanager and the new FaxCom.
My issue is inbound large faxes. Several of our departments receive faxes that can be 100 pages. There is not any issues with our physical fax machines or the old Faxcom receiving these large faxes. But of course, the new FaxCom, when we go to receive a large fax will timeout and disconnect. Only half of the pages get received. We do not have any issues sending these large faxes from the new FaxCom, only receiving. Small faxes do not have this issue, only the large ones.
I thought maybe it was a PSTN or gateway issue, so I tested with a different group of PRI's, different gateway, but still the same carrier. I had the same issue. I have done a Q921 and Q931. Here is the output:
With more testing, we found that the internal SIP trunk (CUCM) is the provider disconnecting the call. With traces, we found, the Faxcom server is not responding to the SIP session refresh invites. Since it is not responding, CUCM is disconnecting the call/fax.
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...