[Asterisk-Users] Linksys SPA-841 Missing Calls

[Dave Morrow]

Hi all, I have been plagued by an issue with my SPA-841 phones.  The issue is that frequently, usually after a period of inactivity on the phone, an incoming call will be missed by the phone.  The call works, cause the caller ends up at voicemail, but the phone never rings. I've managed to trap one of these missed calls in Asterisk, the log is below.  Can anyone make sense of it?

Retransmitting #3 (no NAT) to 172.16.140.114:5060:
NOTIFY sip:3024 at 172.16.140.114:5060 SIP/2.0
Via: SIP/2.0/UDP 172.16.199.100:5060;branch=z9hG4bK4bf4b4ef;rport
From: "asterisk" <sip:asterisk at 172.16.199.100>;tag=as10f82be7
To: <sip:3024 at 172.16.140.114:5060>
Contact: <sip:asterisk at 172.16.199.100>
Call-ID: 1de5b20d5451794842efcf632faba6ac at 172.16.199.100
CSeq: 102 NOTIFY
User-Agent: Asterisk PBX
Max-Forwards: 70
Event: message-summary
Content-Type: application/simple-message-summary
Content-Length: 81
 
Messages-Waiting: yes
Message-Account: sip:asterisk@
Voice-Message: 1/2 (0/0)
 
---
Retransmitting #4 (no NAT) to 172.16.140.114:5060:
NOTIFY sip:3024 at 172.16.140.114:5060 SIP/2.0
Via: SIP/2.0/UDP 172.16.199.100:5060;branch=z9hG4bK4bf4b4ef;rport
From: "asterisk" <sip:asterisk at 172.16.199.100>;tag=as10f82be7
To: <sip:3024 at 172.16.140.114:5060>
Contact: <sip:asterisk at 172.16.199.100>
Call-ID: 1de5b20d5451794842efcf632faba6ac at 172.16.199.100
CSeq: 102 NOTIFY
User-Agent: Asterisk PBX
Max-Forwards: 70
Event: message-summary
Content-Type: application/simple-message-summary
Content-Length: 81
 
Messages-Waiting: yes
Message-Account: sip:asterisk@
Voice-Message: 1/2 (0/0)
 
---
Retransmitting #5 (no NAT) to 172.16.140.114:5060:
NOTIFY sip:3024 at 172.16.140.114:5060 SIP/2.0
Via: SIP/2.0/UDP 172.16.199.100:5060;branch=z9hG4bK4bf4b4ef;rport
From: "asterisk" <sip:asterisk at 172.16.199.100>;tag=as10f82be7
To: <sip:3024 at 172.16.140.114:5060>
Contact: <sip:asterisk at 172.16.199.100>
Call-ID: 1de5b20d5451794842efcf632faba6ac at 172.16.199.100
CSeq: 102 NOTIFY
User-Agent: Asterisk PBX
Max-Forwards: 70
Event: message-summary
Content-Type: application/simple-message-summary
Content-Length: 81
 
Messages-Waiting: yes
Message-Account: sip:asterisk@
Voice-Message: 1/2 (0/0)

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David A. Morrow
Technical Systems Lead
Autodata Solutions Company
David.Morrow at Autodata.Net
http://www.autodata.net

* PLEASE NOTE THAT EFFECTIVE DEC 1,2005 MY TELEPHONE NUMBER WILL CHANGE *

NEW !!! Tel: (519) 963-3020
Fax: (519) 451-6615 

< Poor planning on your part does not necessarily constitute an emergency on my part! >

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