asterisk users - Jan 2004 - More Success on the Cisco 7920 and SCCP !!!!!

Hi All,

have some decent success on the 7920 "activation" in Asterisk.

Latest status:
chan_skinny does NOT work with 7920
chan_sccp does WORK with 7920 (!!)

however:

to remove coredumping the chan_sccp just comment out the MWI
(messagewaitingindicator), then it compiles fine.

Then change sccp_helper.c:  return "P0060302" instead of the old
value.

and voila:

Phone is registering to Asterisk :-)

But currently:
--------------
After registering to Asterisk it received a "off-hook" message from
the
7960 and then "Call Ended" on the Display (curious about that !!!).

After that the phone reboots and the stuff repeats....

Hope to find more answers soon, but it should lead people in the right
direction.

--jan


-- 
Jan Czmok, Network Engineering & Support, Global Access Telecomm, Inc.
Ph.: +49 69 299896-35 - fax: +49 69 299896-40 - sip:13129*522@inoc-dba.pch.net

Hi Jan,

the 7920 is on my todo list for quite a few days now, and I've had
experience similar to yours...

On Sun, 11 Jan 2004, Jan Czmok wrote:
> Latest status:
> chan_skinny does NOT work with 7920
> chan_sccp does WORK with 7920 (!!)
Yup.
One should add that you'd better use the 0.2 release or a CVS snapshot.
(Note for CVS: Zozo's server is a bit picky about its clients. You have to
 add the trailing "/" to your CVSROOT, exactly as documented. And even
 then, I was only able to make one checkout, whereas "cvs update" in
that
 tree always failed. Some versions of CVS clients didn't work at all.
 One working version is the 1:1.12.2-2 Debian package)
> however:
>
> to remove coredumping the chan_sccp just comment out the MWI
> (messagewaitingindicator), then it compiles fine.
Haven't had any trouble with that. (In fact, MWI works fine on a 7960 with
chan_sccp here.) When do you get core dumps and do you have app_voicemail
loaded/configured?
> Then change sccp_helper.c:  return "P0060302" instead of the old
value.
>
> and voila:
>
> Phone is registering to Asterisk :-)
>
> But currently:
> --------------
> After registering to Asterisk it received a "off-hook" message
from the
> 7960 and then "Call Ended" on the Display (curious about that
!!!).
That seems to be normal for the 7920. I've sniffed the registration
procedure with Cisco's newest 3.3(3) CallManager (+patches), and it's
doing the same thing. Maybe that's some odd way of testing if the
CallManager ("CCM") really works...
> After that the phone reboots and the stuff repeats....
Same thing here.
CCM does quite a few things in different order compared to chan_sccp, but
apart from that, the registration procedure seems quite similar.
I'm still looking into the detailed differences (which is a bit hard, as
there doesn't seem to be any tool like "diff" for ethereal
traces).
> Hope to find more answers soon, but it should lead people in the right
> direction.
I hope so, too. And I'll let you know if there is any news.

That said: The 7920 is definitely beta quality, at most: I have
experienced dropped connections as well as the phone ignoring remote
hangup, on more that 50% of my calls in a 100% Cisco environment, with a
Cisco AiroNet access point within 3m, direct line-of-sight. So I guess it
will take a year or two (just as with the 7960/7940) before Cisco gets the
firmware in a state that can be considered production quality.

Cheers,
	Siggi