Hi there,
I am encountering the same problem while trying to monitor whether an extension is on the phone or not. I am following up thus this topic.
I am using Vodia PBX 5.3.2 with Cisco SPA525G phones.
I have browsed several topics in the forum but still now, I am not able to get BLF working on my Cisco phones.
Interestingly, I have seen that the PBX does not seem to allow SUBSCRIBE function from SPA525G. I have pasted below some of the SIP traces between the SPA525G and the PBX.
REGISTER sip:pbx.DOMAINHIDDEN.com SIP/2.0
Via: SIP/2.0/UDP 192.168.1.24:5060;branch=z9hG4bK-43b24db
From: "Alexandre" <sip:41@pbx.DOMAINHIDDEN.com>;tag=f8328d44a54068c2o2
To: "Alexandre" <sip:41@pbx.DOMAINHIDDEN.com>
Call-ID: 620fb59f-1ac46364@192.168.1.24
CSeq: 35562 REGISTER
Max-Forwards: 70
Authorization: Digest username="41",realm="pbx.DOMAINHIDDEN.com",nonce="c19519c7044e06a4f305f2a0644479d3",uri="sip:pbx.DOMAINHIDDEN.com",algorithm=MD5,response="cd1155a5883d396316b1ea1663dcde95"
Contact: "Alexandre" <sip:41@192.168.1.24:5060>;expires=3600
User-Agent: Cisco/SPA525G-7.5.5
Content-Length: 0
Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER, UPDATE, MESSAGE
Supported: replaces
It appears from the above that SPA52G does not support SUBSCRIBE method to watch the status of an extension.
In comparison with a SNOM 300 phone, I have seen a Subscribe registration in the SIP trace. Does Vodia PBX allow BLF reporting from the notify function?
How could I manage to get the BLF feature working between Vodia PBX and Cisco SIP Phones?
Thanks in advance,
Alex.