How to change h323-ID sx10 sx20

mathew.lear · ‎06-01-2018

Hello,

I have some stanadlone endpoints on the internet SX10/20.

When they are calling into Skype via EXP-E -> EXP-C -> CUCM -> CMS they all apear with the same H323 ID and CMS will drop the call because of this bug : CSCve27489

So I changed the H323 ID on the configuration page of the endpoint, saved and rebooted but I still get the following in the setup :

2018-06-01T10:43:21.075+00:00 a8 appl[1709]: 254.57 H323Packet         sourceAddress 
2018-06-01T10:43:21.075+00:00 a8 appl[1709]: 254.57 H323Packet         {
2018-06-01T10:43:21.075+00:00 a8 appl[1709]: 254.57 H323Packet           h323-ID : "h323:xx:xx:xx:xx"

The h323 id should be showing the new value, or am I wrong on this point ?

Thanks for taking a look,

Regards,

Mat

PJMack · ‎06-01-2018

You described these endpoints as standalone - that means they aren't registered to a Gatekeeper or SIP Proxy, correct? The H.323 ID and E.164 fields are not used unless you are registering to an H.323 Gatekeeper. You are still seeing the IP address as the ID because in your scenario that's what it is.

mathew.lear · ‎06-02-2018

Yes, there standalone, TAC reccomended to change these values even though I did mention the endpoints were standalone.

So after a bit more analysis I can see that the reason 1st call is disconnected when the second call coming from a standalone endpoint to a skype meeting is because CUCM is sending identical SIP URI "FROM" for two seperate calls which results in the first call getting disconnected (CSCve27489). I am checking CCM traces to see which App/Process on CUCM is responible for this as I was not involved with the deployment.

#1st Call
Inbound leg from EXP to CUCM Call-ID: 5d448e0262d6e1291b49f2c98b1dda1a
From: <sip:81.255.19.117>;tag=899f4f77a9552707

Outbound leg from CUCM to CMS Call-ID: 197d9f80-b0e1b404-100100-83f1050a
From: <sip:visios.private.net>;tag=16187997~32973f8e-9951-4d90-a462-324235cbf117-45857892

#2nd Call
Inbound leg from EXP to CUCM Call-ID: 9006a75ed49300833d9e2a4a996f58a4
From: <sip:81.255.19.118>;tag=d1ec53f84628fea7

Outbound leg from CUCM to CMS Call-ID: 45992080-b0e1b44e-b6a63-82f1050a
From: <sip:visios.private.net>;tag=13821025~32973f8e-9951-4d90-a462-324235cbf117-29031366

"When second external standalone endpoint calls to skype meeting, 1st standalone endpoint already connected gets disconnected from the same skype meeting."

Regards,

Mat