Hi All, I'd like to ask your valuable help for the following question: - is there a way to change the MTU size of the CUCM endpoints (Dx650, 7841, etc...) packets ? Customer indeed has an environment in which some recently added crypto device asks the phones to lower their MTU or fragment but they seems to not care of this and RTP is dropped resulting in no media flowing. Thanks, Andrea ... View more

Hi All,   i'd like to ask your valuable help to understand whether the following scenario is feasible or not and, if so, how to set it correctly up ;-)   topology: ------------ CUCM ----> |   CUBE A  |                      |   CUBE B  |    ->  (WAN) -> 3rd Party SBCs (2)   - CUBE A and CUBE B are configured for HSRP so SBCs will see just one IP - 3rd Party SBCs will have their own CA   Now question time: - will this scenario somehow work ? ... I mean, can we set it up with the above specs or this is not supported at all ?   If it will/should work, this is my idea:   - for the certificates/CA part, I'd use the same procedure Cisco suggests for SIP TLS between CUCM and CUBE, namely: http://www.cisco.com/c/en/us/support/docs/voice/session-initiation-protocol-sip/98746-ios-ccm-sip-tls.html   ... in other words, I'll create the local, self signed certificates on the CUBE and export them (somehow!) to the SBC's CA Then I'll do the opposite: I'll ask the SBC's CA to give me the SBC's (.pem) and import it into the CUBEs.   ... are we ok up to this point :-/ ?   If so, I've the following question:   - I'm sure I will need to share the same certificates and keys pair among the two CUBEs so, whichever will be contacted by the SBCs, the 3rd party CA will send them the correct (same) one (public key). If also the above is correct, how can I share everything I need to make the two CUBE's exactly the same, according to TLS certificates/keys, from the SBCs standpoint ?   Thanks a lot :-)   - Andrea ... View more

Hi Guys, we're experiencing a weird issue on our CCM 8.6.2.20000-2: you create a new Jabber device (Cisco dual mode for Android) but when you later on come back and try to change something in the phone configuration page, CCM won't save it ! ... indeed you click on the 'save' button but nothing happens: it looks like the button has no action at all associated with it. By the way, you can change the line settings, no problems. ... any idea where this could be coming from :-/ ? ... I had a look at the bug toolkit but no luck. Thanks, Andrea ... View more