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BLF and SPA525G


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I'm using SPA525G phones with SnomONE.


I have got unused line keys on the screen i wanted to use for BLF to monitor extensions and parking orbit.


I tried to set on a key the following function for BLF :


The only thing is that BLF isn't working because when the extension 40 is being called, the status on my phone does not change.


I have activated calls monitoring of extension 40 on my account in SnomONE account settings.

How can this be achieved from a Cisco SPA 5XX phone ?


Regarding the park orbit key, i tried :


Does not work when a call has been parked on this orbit. No blink light.

(where 45 is an orbit park)


I look forward other CIsco users to know which settings I should apply.


Many thanks,


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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.

Via: SIP/2.0/UDP;branch=z9hG4bK-43b24db 
From: "Alexandre" <sip:41@pbx.DOMAINHIDDEN.com>;tag=f8328d44a54068c2o2 
To: "Alexandre" <sip:41@pbx.DOMAINHIDDEN.com> 
Call-ID: 620fb59f-1ac46364@ 
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@>;expires=3600 
User-Agent: Cisco/SPA525G-7.5.5 
Content-Length: 0 
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,


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