[asterisk-users] Cisco CAll Manger and H323

[Yusuf]

Thanks Dan,

that was awesome, and really made sense about what was really happening.  :)
Will try a newer.

BTW: I did get it to successfully route inbound calls to asterisk with
oh323, and DTMF and transfers worked fine.


> Yusuf wrote:
>> Hi Dan,
>
>> I used asterisk 1.2.10 with asterisk-addons 1.2.3.
>> I did two successfull calls, but with dtmf=rfc2833, dtmf was not
>> sending at all.  Then when I made some changes, I could not get any
>> calls to go through.  The call would just hangup after first ring.
> Call Manager's support for RFC2833 is 'lacking'.  It works reasonably
> well in 5.X for SIP, but forget about using it with H323.  I've tested
> all four options with Call Manager, and only q931keypad and h245signal
> worked.  I'd recommend using h245signal.
>
>> Did you get calls going in both ways, inbound and outbound to
> asterisk.
>>  O got two calls going from CAllmanger to asterisk only, other would
> not
>> work.
>
> Calls work both ways, although 99.99% of my calls are inbound, since
> we use Asterisk for conferencing only at this point.
>
> Here are a couple of ideas to try:
> 	1.  Set the Call Manager H323 gateway to 'Require MTP'
> 	2.  Set DTMF to h245 signal
>
> What is likely happening is that with Asterisk asking for RFC2833,
> CCM tries to invoke a MTP.  I am not sure in which Asterisk-Addons
> version it was added, but I wrote support for Empty Terminal Capability
> sets for chan_ooh323.  If that feature is not in the version you have,
> (chan_ooh323 release 0.5 or newer), and you are not forcing an MTP on
> the CCM gateway you'll see a problem like you have.
>
> I should also point out that if you are not running chan_ooh323 0.5 or
> newer and do get Asterisk to accept calls with out forcing an MTP, calls
> will be dropped anytime a CCM endpoint uses hold or transfer features.
>
> If you do have 0.5 or newer, then changing the DTMF migth be enough.
>
> Hope this helps,
> Dan
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-users
>
> --
> This message has been scanned for viruses and
> dangerous content by MailScanner, and is
> believed to be clean.
>
>


thanks,
yusuf


-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.