[cisco-voip] H323 Call Preservation added in 12.4(9)T

[Lelio Fulgenzi]

Anyone hear of any plans to add call preservation for MGCP calls?

Also, I'm a little confused as to what is responsible for this new feature, 
is it SRST or is it IOS? I know it's hard to distinguish or draw a line, but 
I would sure like to be able to go to the SRST page to see what new features 
are being made available rather than hunting through IOS documentation.

----- Original Message ----- 
From: "Robert Kulagowski" <bob at smalltime.com>
To: "Jason Aarons (US)" <jason.aarons at us.didata.com>
Cc: <cisco-voip at puck.nether.net>
Sent: Monday, April 23, 2007 10:47 PM
Subject: Re: [cisco-voip] H323 Call Preservation added in 12.4(9)T


> We have it configured and (unfortunately) use it.  Calls stay up during
> transition in and out of SRST mode.
>
> If you're in "normal" mode and you go into SRST, your call stays active,
> but your phone won't register into SRST mode until after you hang up.
> At that point it does its little reset dance and registers with the CM.
>
> Same thing coming out of SRST mode; if you're on an active call and the
> WAN becomes available, your phone stays on the call until you hang up,
> at which point it will come out of SRST.
>
> Also, calls will stay up through a transition in and out of SRST mode if
> you're on a long call.
>
> NOTE:  Don't install 12.4.9(T)!  We discovered a bug
> (http://www.cisco.com/cgi-bin/bugtool/onebug.pl?bugid=CSCsf21458) that
> causes the phones to continuously deregister each other; TAC cut us a
> custom IOS (12.4.9T build 134) which is what we're using, but you don't
> need to go through that hassle:
>
> First Fixed-in Version  12.4(11.1)T, 12.4(9)T02, 12.4(4)XC05
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>