asterisk users - Feb 2005 - chan_sip.c:7296 handle_request: Unable to create/find channel

Hi,

I have installed chan_sip on asterisk-1.0.3 / 5 (tried
both, same result).

My sip phone registers fine.

But when dialing a number, I get:

Feb  2 09:44:45 NOTICE[20380]: chan_sip.c:7296 handle_request: Unable to 
create/find channel
...
Feb  2 09:44:52 WARNING[20380]: chan_sip.c:686 retrans_pkt: Maximum 
retries exceeded on call 384534305@192.168.1.20 for seqno 219 
(Non-critical Response)


With a high verbosity level or sip debug I can't find any further hints.
Furthermore, imho, I have several servers running with the same
configuration without that problem.

O.k., there must be any difference, but I have no more idea where to
look.


Thanks for any hints, how to get more informations about that error!


Roger.

Roger Schreiter wrote:
> But when dialing a number, I get:
> Feb  2 09:44:45 NOTICE[20380]: chan_sip.c:7296 handle_request: Unable to 
> create/find channel
After I installed my Digium g729 license, I'm trying to place a call 
from my Cisco 7960 and I'm receiving the same error:

Feb 19 09:47:06 NOTICE[25246]: chan_sip.c:7399 handle_request: Unable to 
create/find channel
Feb 19 09:47:07 NOTICE[25246]: chan_sip.c:7399 handle_request: Unable to 
create/find channel

I can't place calls, but I can receive them:

mail*CLI> sip show channels
Peer             User/ANR    Call ID      Seq (Tx/Rx)   Format
192.168.3.2      3018        2168101b16b  00102/00000   g729


g729 is available for asterisk:

mail*CLI> show translation
          Translation times between formats (in milliseconds)
           Source Format (Rows) Destination Format(Columns)

          g723   gsm  ulaw  alaw  g726 adpcm  slin lpc10  g729 speex
    g723     -     -     -     -     -     -     -     -     -     -
     gsm     -     -     2     2     5     2     1    10    16    39
    ulaw     -     7     -     1     5     2     1    10    16    39
    alaw     -     7     1     -     5     2     1    10    16    39
    g726     -     9     4     4     -     4     3    12    18    41
   adpcm     -     7     2     2     5     -     1    10    16    39
    slin     -     6     1     1     4     1     -     9    15    38
   lpc10     -     9     4     4     7     4     3     -    18    41
    g729     -     8     3     3     6     3     2    11     -    40
   speex     -     8     3     3     6     3     2    11    17     -
    ilbc     -     9     4     4     7     4     3    12    18    41

(I removed ilbc from posting to keep the line feed)

Did I miss something?