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I am trying to configure a SIP router across a NAT firewall with no ALG.I am trying to replicate in my lab before deploying in production.I am having a hard time getting it to work.The call flow is like this:CUCM > SIP-CUBE > NAT-Firewall > SIP-PROVI...
I am trying the Data Export feature with CER 12.5(1)SU9 but it is not working.When I run the export command, it just hangs.I’ve tried it on a couple different deployments, and get the same results.Wondering if I am doing something wrong, or it just d...
We upgraded our UCM environment from version 12.5(1)SU3 to version 15.0 SU4.We have an H.323 Gateway configured to an Avaya phone system.After the upgrade, we now have one-way audio on calls across the Gateway.Cisco side can hear Avaya, but Avaya can...
I’m wondering if there is a setting in Control Hub similar to Call Manager’s - Always Use Prime Line.Although my issue is not exactly the same as with CUCM. But reminds me of it.I am working with some 9851 phones.I have the User setting - Auto Collap...
Has anyone used the ‘utils itl reset localkey’ command ?I tried it and it did not work as expected.This is for Call Manager 15 SU3a.I have several hundred 7821 phones that have lost their trust with Call Manager.Status Page shows ‘No Trust List Insta...
NithinThanks for the reply.It is the PSTN side that is silent.The device at 10.200.202.220 is the IP Phone registered with CUCM.I hadn't noticed that in the trace.We are thinking a different design - along the lines that Roger suggested.Not sure I wi...
RogerThanks for the replay and the info.I would have bet money I had enabled ‘mode border-element’.Obviously I didn’t.But I have now. Although same results.I will research adding a second interface.I was hoping I could do this with the existing topol...
Cisco has released version 17.18.03a for this platform.It does fix the 'unlicensed' prompt.I mostly have the C8130-G2 model, but we do have a couple C8231-G2.When upgrading thee 8231's both failed the first time.I think I hit this bug: CSCvx27665I re...
Thanks Nithin for the info.I too have done many Data Export upgrade/migrations.But not with CER 12.5. Thanks for the info. Looks like those don't apply for my deployment.We don't use any IPSEC policies, and not using FIPS mode.I might have to retry t...