Hello - I have just purchased an Aastra 9133i SIP phone for testing with Asterisk. Its a little flakey but overall is a far superior phone to the others in the $179 range. I have an issue regarding the message waiting indicator. The phone does not seem to respond to the "NOTIFY" command from Asterisk. Searching archives seems to indicate that this was previously an issue on the 480i telephone but that it got corrected. I have downloaded the lastest firmware (1.2.1) onto the phone but no go. Below is an exerpt of the SIP DEBUG from CLI. I'd like feedback on whether this is an Aastra issue or an Asterisk issue. Anyone have experience with these phones? It appears that Asterisk sends the message five times. Perhaps it is awaiting a response from the phone which never comes. In any case, the MWI never activates. 11 headers, 2 lines Reliably Transmitting: NOTIFY sip:2008@192.168.1.201 SIP/2.0 Via: SIP/2.0/UDP 192.168.1.251:5060;branch=z9hG4bK3b581d6c From: "" <sip:@192.168.1.251>;tag=as77c9889f To: <sip:2008@192.168.1.201> Contact: <sip:192.168.1.251> Call-ID: 4a4e5c1d173010e3027c5d226cac810b@192.168.1.251 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 (no NAT) to 192.168.1.201:5060 Scheduling destruction of call '4a4e5c1d173010e3027c5d226cac810b@192.168.1.251' in 15000 ms Retransmitting #1 (no NAT): NOTIFY sip:2008@192.168.1.201 SIP/2.0 Via: SIP/2.0/UDP 192.168.1.251:5060;branch=z9hG4bK3b581d6c From: "" <sip:@192.168.1.251>;tag=as77c9889f To: <sip:2008@192.168.1.201> Contact: <sip:192.168.1.251> Call-ID: 4a4e5c1d173010e3027c5d226cac810b@192.168.1.251 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 <SNIP> to 192.168.1.201:5060 Retransmitting #5 (no NAT): NOTIFY sip:2008@192.168.1.201 SIP/2.0 Via: SIP/2.0/UDP 192.168.1.251:5060;branch=z9hG4bK3b581d6c From: "" <sip:@192.168.1.251>;tag=as77c9889f To: <sip:2008@192.168.1.201> Contact: <sip:192.168.1.251> Call-ID: 4a4e5c1d173010e3027c5d226cac810b@192.168.1.251 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 192.168.1.201:5060