Ajit wrote:
Hi,
 I am trying to use the manager API to originate a SIP call from one
asterisk extension to another. eg extension [EMAIL PROTECTED] calls
extension [EMAIL PROTECTED] this fails with a 482 "Loop
detected".

I beleive this behaviour is incorrect according to rfc3261 :
 The UAS processes the first such request received and responds with a 482
(Loop
      Detected) to the rest of them.

In this case its a sent request colliding with the first recieved request.
Can people on the dev list comment on if this is a bug and where in the code
it may be fixed.

Note that i do not need SIP proxy functionality or NAT  from asterix.
 Any ideas on workarounds?? I think if i can have two SIP stacks on
different ports calling each other this behaviour can be avoided.Is this
possible and if so how can i configure this.

Regards,
Ajit

P.S: Here is the SIP debug (ip addresses modified)
LI> sip debug
SIP Debugging enabled
  == Parsing '/etc/asterisk/manager.conf': Found
  == Manager 'manager' logged on from xxx.yyy.xxx.yyy
We're at myasteriskserver port 10878
Adding codec 0x4 (ulaw) to SDP
Adding non-codec 0x1 (telephone-event) to SDP
13 headers, 10 lines
Reliably Transmitting (no NAT) to myasteriskserver:5060:
INVITE sip:[EMAIL PROTECTED] SIP/2.0
Via: SIP/2.0/UDP myasteriskserver:5060;branch=z9hG4bK7aa5b7b4;rport
From: "asterisk" <sip:[EMAIL PROTECTED]>;tag=as7c2a32b7
To: <sip:[EMAIL PROTECTED]>
Contact: <sip:[EMAIL PROTECTED]>
Call-ID: [EMAIL PROTECTED]
CSeq: 102 INVITE
User-Agent: Asterisk PBX
Max-Forwards: 70
Date: Fri, 28 Apr 2006 13:14:47 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Content-Type: application/sdp
Content-Length: 212

v=0
o=root 5351 5351 IN IP4 myasteriskserver
s=session
c=IN IP4 myasteriskserver
t=0 0
m=audio 10878 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -

---

<-- SIP read from myasteriskserver:5060:
INVITE sip:[EMAIL PROTECTED] SIP/2.0
Via: SIP/2.0/UDP myasteriskserver:5060;branch=z9hG4bK7aa5b7b4;rport
From: "asterisk" <sip:[EMAIL PROTECTED]>;tag=as7c2a32b7
To: <sip:[EMAIL PROTECTED]>
Contact: <sip:[EMAIL PROTECTED]>
Call-ID: [EMAIL PROTECTED]
CSeq: 102 INVITE
User-Agent: Asterisk PBX
Max-Forwards: 70
Date: Fri, 28 Apr 2006 13:14:47 GMT
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Content-Type: application/sdp
Content-Length: 212

v=0
o=root 5351 5351 IN IP4 myasteriskserver
s=session
c=IN IP4 myasteriskserver
t=0 0
m=audio 10878 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -

--- (13 headers 10 lines)---
Transmitting (no NAT) to myasteriskserver:5060:
SIP/2.0 482 Loop Detected
Via: SIP/2.0/UDP
myasteriskserver:5060;branch=z9hG4bK7aa5b7b4;rport;received=myasteriskserver
From: "asterisk" <sip:[EMAIL PROTECTED]>;tag=as7c2a32b7
To: <sip:[EMAIL PROTECTED]>;tag=as7c2a32b7
Call-ID: [EMAIL PROTECTED]
CSeq: 102 INVITE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Contact: <sip:[EMAIL PROTECTED]>
Content-Length: 0


---

<-- SIP read from myasteriskserver:5060:
SIP/2.0 482 Loop Detected
Via: SIP/2.0/UDP
myasteriskserver:5060;branch=z9hG4bK7aa5b7b4;rport;received=myasteriskserver
From: "asterisk" <sip:[EMAIL PROTECTED]>;tag=as7c2a32b7
To: <sip:[EMAIL PROTECTED]>;tag=as7c2a32b7
Call-ID: [EMAIL PROTECTED]
CSeq: 102 INVITE
User-Agent: Asterisk PBX
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
Contact: <sip:[EMAIL PROTECTED]>
Content-Length: 0


--- (10 headers 0 lines)---
    -- Got SIP response 482 "Loop Detected" back from myasteriskserver
Transmitting (no NAT) to myasteriskserver:5060:
ACK sip:[EMAIL PROTECTED] SIP/2.0
Via: SIP/2.0/UDP myasteriskserver:5060;branch=z9hG4bK7aa5b7b4;rport
From: "asterisk" <sip:[EMAIL PROTECTED]>;tag=as7c2a32b7
To: <sip:[EMAIL PROTECTED]>;tag=as7c2a32b7
Contact: <sip:[EMAIL PROTECTED]>
Call-ID: [EMAIL PROTECTED]
CSeq: 102 ACK
User-Agent: Asterisk PBX
Max-Forwards: 70
Content-Length: 0


---

<-- SIP read from myasteriskserver:5060:
ACK sip:[EMAIL PROTECTED] SIP/2.0
Via: SIP/2.0/UDP myasteriskserver:5060;branch=z9hG4bK7aa5b7b4;rport
From: "asterisk" <sip:[EMAIL PROTECTED]>;tag=as7c2a32b7
To: <sip:[EMAIL PROTECTED]>;tag=as7c2a32b7
Contact: <sip:[EMAIL PROTECTED]>
Call-ID: [EMAIL PROTECTED]
CSeq: 102 ACK
User-Agent: Asterisk PBX
Max-Forwards: 70
Content-Length: 0


--- (10 headers 0 lines)---
Destroying call '[EMAIL PROTECTED]'
  == Manager 'manager' logged off from xxx.yyy.xxx.yyy

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Why don't you use something like the chan_local channel driver to send the call into the dialplan where it will then execute the extension? If you don't you're going to see what you're getting above. You're looping an outbound call back inbound to the same box, with the same callid... so it's perceiving it as a loop.

--
Joshua Colp
Software Developer
Digium
P - 256-428-6066
C - 506-878-0147
[EMAIL PROTECTED]
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