[Asterisk-Users] Asterisk and Sipura SPA-841 SIP phones

[Chris Stone]

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Well, a bit of a newbie using Asterisk and trying to get some Sipura SPA-841 
phones to talk to the Asterisk server. Not doing something right 
apparently....

If I turn on debug for the extension in the CLI (sip debug ip xxx.xxx.xxx.xxx) 
I see frequent 5 packet attempts by the server to contact the phone, but 
seems to always be failing. The status for the extension in the phone shows 
either Disabled (or on another extension Failed).

The sip.conf entry for example is:

[302]
type=friend
username=302
secret=mysecret
mailbox=302
context=ext-local
host=10.0.0.2
dtmfmode=rfc2833
canreinvite=yes
qualify=no

and I've tried a number of permutations on that setup and some 'examples' of 
SIP configs I've found on the net. Same results:

Retransmitting #1 (no NAT):
NOTIFY sip:302 at 10.0.0.2 SIP/2.0
Via: SIP/2.0/UDP 10.0.0.1:5060;branch=z9hG4bK2b963e11
From: "Unknown" <sip:Unknown at 10.0.0.1>;tag=as149adc4e
To: <sip:302 at 10.0.0.2>
Contact: <sip:Unknown at 10.0.0.1>
Call-ID: 185e61bf1fc8d52012e4234e07fa0fbc at 10.0.0.1
CSeq: 102 NOTIFY
User-Agent: Asterisk PBX
Event: message-summary
Content-Type: application/simple-message-summary
Content-Length: 43

Messages-Waiting: yes
Voice-Message: 1/0

 to 10.0.0.2:5060

Checked pinging of the IP from that machine and all is fine and all traffic 
to/from that IP space is opened on the server.

Any ideas or suggestions/examples of configs?

Chris
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