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T27 V80 Firmware - BLFs Inoperable with Freeswitch
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rwhitlatch Offline
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Posts: 8
Joined: May 2015
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Post: #1
T27 V80 Firmware - BLFs Inoperable with Freeswitch
Hey Guys,
We recently purchased some T27 phones that run a new firmware, The BLF lights do not work. I've confirmed positive SUBSCRIBEs, and NOTIFYs being sent to the phones, to which the phone responds with a 200 OK, but no light.

I believe this may be with the dialog-info, perhaps it does not like/recognize the state? Firmware V72 works fine on the T26/28, etc. I was hoping to have a tech take a look at this. I can get you pcaps from the router and phone alike if required. Below is a snippet of a NOTIFY sent by my server that did not illuminate the BLF. I've tried multiple BLF modes (0,1,2, etc) not no avail. Thoughts?

<<<<<<<<<<<<<<<sip header stop<<<<<<<<<<<<<<<<<<<<
[tos 0xb8]
16:11:11.209048 kam001.REMOVED.5060 >
>>>>>>>>>>>>>>>sip header start>>>>>>>>>>>>>>>>>>>
NOTIFY sip:sipoff_f105@ SIP/2.0
Via: SIP/2.0/UDP;branch=z9hG4bK1a3b.c4b87c05000000000000000000000000.0
Record-Route: <sip:sipoff_f105@;lr>
From: <sip:*>;tag=f60b39ccd0c69fb84f0c4ccb3f5af2c8-cdc2
To: <>;tag=1295495930
Call-ID: 0_4166604576@
Contact: <sip:;transport=udp>
Max-forwards: 70
Event: dialog
Subscription-state: active;expires=1800
Content-Type: application/dialog-info+xml
Content-Length: 688

<?xml version="1.0"?>
<dialog-info xmlns="urn:ietf:params:xml:ns:dialog-info" version="2" state="full" entity="sip:*">
<dialog id="0d491fa45a71934a39f23aa17f7d84e2" call-id="0d491fa45a71934a39f23aa17f7d84e2" local-tag="K34XgNcB5Bape" remote-tag="gK0eb26726" direction="recipient">
<identity display="*31">sip:*</identity>
<target uri="sip:*"/>
<identity display="+16468541510">sip:+16468541510@</identity>
<target uri="sip:+16468541510@"/>

<<<<<<<<<<<<<<<sip header stop<<<<<<<<<<<<<<<<<<<<
[tos 0xb8]
16:11:11.215871 > kam001.REMOVED.5060:
>>>>>>>>>>>>>>>sip header start>>>>>>>>>>>>>>>>>>>
SIP/2.0 200 OK
Via: SIP/2.0/UDP;branch=z9hG4bK1a3b.c4b87c05000000000000000000000000.0
From: <sip:*>;tag=f60b39ccd0c69fb84f0c4ccb3f5af2c8-cdc2
To: <>;tag=1295495930
Call-ID: 0_4166604576@
User-Agent: Yealink SIP-T27P
Content-Length: 0
05-28-2015 12:07 AM
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T27 V80 Firmware - BLFs Inoperable with Freeswitch - rwhitlatch - 05-28-2015 12:07 AM

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