[asterisk-users] Call Pickup with 1.6.2.1 and Snom

Mon Feb 15 02:32:24 CST 2010

Hi,
I've experienced the same thing in the 1.6.2 release, with the 1.6.1 all
work as expected.
There is nothing in the changelog ...
So, I think it's a bug ?

-----Message d'origine-----
De : asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] De la part de Loris
Santamaria
Envoyé : samedi 13 février 2010 04:09
À : asterisk-users at lists.digium.com
Objet : [asterisk-users] Call Pickup with 1.6.2.1 and Snom

Hi,

I've used various patches with asterisk 1.4 to have support for call
pickup and notification with good results.

Now I'm trying vanilla 1.6.2 with its official support for "dialog-info
+xml" notifications with no success. This is what i'm doing:

- Phone A has a key configured as type "extension" pointing to Phone B.
- In sip.conf I added notifycid=ignore-context
- Phone A and B and C are in the same callgroup and pickupgroup
- Phone A and B and C are in the same context

Phone C calls Phone B and asterisk generates a notification for phone A:

<?xml version="1.0"?>
<dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="11"
state="full" entity="sip:35505 at 10.40.23.179">
<dialog id="35505" call-id="pickup-3c26701519b8-5xxapzoav2u4"
direction="recipient">
<remote>
<identity display="Lab 1">sip:35501 at 10.40.23.179</identity>
<target uri="sip:35501 at 10.40.23.179"/>
</remote>
<local>
<identity>sip:35505 at 10.40.23.179</identity>
<target uri="sip:35505 at 10.40.23.179"/>
</local>
<state>early</state>
</dialog>
</dialog-info>

With this notification, Phone A shows on the screen that Phone C is
calling Phone B, and the function key blinks. If one presses the
blinking function key, the phone generates an Invite with replaces, to
try to pickup the call:

INVITE sip:35501 at 10.40.23.179 SIP/2.0
Via: SIP/2.0/UDP 10.40.24.175:5060;branch=z9hG4bK-qoz3zjhmyfcw;rport
From: "Lab 4" <sip:35504 at 10.40.23.179>;tag=o28fq65rfu
To: "Lab 1" <sip:35501 at 10.40.23.179>
Call-ID: 3c2672b3f35a-dpd0zv11yegl
CSeq: 1 INVITE
Max-Forwards: 70
Contact: <sip:35504 at 10.40.24.175:5060>;flow-id=1
Replaces: pickup-3c26701519b8-5xxapzoav2u4
P-Key-Flags: keys="3"
User-Agent: snom320/7.1.39
Accept: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK,
MESSAGE, INFO
Allow-Events: talk, hold, refer, call-info
Supported: timer, 100rel, replaces, from-change
Session-Expires: 600;refresher=uas
Min-SE: 90
Content-Type: application/sdp
Content-Length: 368

Then asterisk receives the pickup request:

[Feb 11 10:44:13] DEBUG[4659] chan_sip.c: Invite/replaces: Will use
Replace-Call-ID : pickup-3c26701519b8-5xxapzoav2u4 Fromtag: <no from
tag> Totag: <no to tag>
[Feb 11 10:44:13] NOTICE[4659] chan_sip.c: Trying to pick up 35505 at RedEdelca
[Feb 11 10:44:13] VERBOSE[4659] chan_sip.c: Sending to 10.40.24.175 : 5060
(no NAT)
[Feb 11 10:44:13] DEBUG[4659] chan_sip.c: Initializing initreq for method
INVITE - callid 3c2672b3f35a-dpd0zv11yegl
[Feb 11 10:44:13] VERBOSE[4659] chan_sip.c: Using INVITE request as basis
request - 3c2672b3f35a-dpd0zv11yegl
[...]
[Feb 11 10:44:13] DEBUG[4659] chan_sip.c: INVITE part of call transfer.
Replaces [pickup-3c26701519b8-5xxapzoav2u4]
[Feb 11 10:44:13] DEBUG[4659] chan_sip.c: Invite/replaces: Will use
Replace-Call-ID : pickup-3c26701519b8-5xxapzoav2u4 Fromtag: <no from
tag> Totag: <no to tag>
[Feb 11 10:44:13] NOTICE[4659] chan_sip.c: Trying to pick up 35505 at RedEdelca
[Feb 11 10:44:13] VERBOSE[4659] chan_sip.c: Sending to 10.40.24.175 : 5060
(no NAT)
[Feb 11 10:44:13] DEBUG[4659] chan_sip.c: Initializing initreq for method
INVITE - callid 3c2672b3f35a-dpd0zv11yegl
[Feb 11 10:44:13] VERBOSE[4659] chan_sip.c: Using INVITE request as basis
request - 3c2672b3f35a-dpd0zv11yegl
[...]
[Feb 11 10:44:13] DEBUG[4659] chan_sip.c: About to call
Pickup(35505 at PICKUPMARK)
[Feb 11 10:44:13] DEBUG[4649] devicestate.c: Changing state for SIP/35504 -
state 2 (In use)
[Feb 11 10:44:13] DEBUG[4649] devicestate.c: device 'SIP/35504' state '2'
[Feb 11 10:44:13] NOTICE[4659] app_directed_pickup.c: No target channel
found for 35505.
[Feb 11 10:44:13] DEBUG[4659] channel.c: Hanging up channel
'SIP/35504-0000000f'
[Feb 11 10:44:13] DEBUG[4659] chan_sip.c: Hangup call SIP/35504-0000000f,
SIP callid 3c2672b3f35a-dpd0zv11yegl

After this obviously phone A hasn't picked up the call, and Phone B
keeps ringing.

Did I miss something in the dialplan or is it a bug?

-- 
Loris Santamaria   linux user #70506   xmpp:loris at lgs.com.ve
Links Global Services, C.A.            http://www.lgs.com.ve
Tel: 0286 952.06.87  Cel: 0414 095.00.10  sip:103 at lgs.com.ve
------------------------------------------------------------
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