On Thu, Oct 16, 2014 at 1:38 PM, Kevin Wormington <kworm@missouri-telecom.com> wrote:

Hi,

I'm trying out the "feature synchronization" functionality of the new
.73 beta firmware for the T46G that allows the phone to notify
FreeSWITCH of DND and Forwarding status.  The phone is using SUBSCRIBE
messages to do this (example below) and FS processes them in
sofia_presence.c and generates a SWITCH_EVENT_PHONE_FEATURE_SUBSCRIBE
event.  I don't see that this event is handled anywhere in mod_sofia.  I
would like to add a configurable feature at let FS emulate key system
behavior and in the case of DND update the presence to be DND/Busy so
the BLF lights on other UA would indicate busy.  I know this is not
necessarily what BLF means but most old key systems have this behaviour.

I have not made an extensive review of mod_sofia but I would think this
would be implemented there where the csta stuff is.  I can play around
with it, but wanted to see if anyone else had an opinion on it or if I'm
completely missing some other way to do it other than using ESL to catch
events and send new ones.

Here is an example of DND being activated:
    ------------------------------------------------------------------------
    SUBSCRIBE sip:1000@192.168.1.175:5060 SIP/2.0
    Via: SIP/2.0/UDP 192.168.1.106:5062;branch=z9hG4bK2975756387
    From: <sip:1000@192.168.1.175>;tag=2420321046
    To: <sip:1000@192.168.1.175>;tag=YKBD9deNLnnN
    Call-ID: 3592119465@192.168.1.106
    CSeq: 5 SUBSCRIBE
    Contact: <sip:1000@192.168.1.106:5062>
    Authorization: Digest username="1000", realm="192.168.1.175",
nonce="71a73470-5561-11e4-9781-81e6a6ef6342",
uri="sip:1000@192.168.1.175:5060",
response="78e97ccca503de4e7490b0bbbf2f35ef", algorithm=MD5,
cnonce="0a4f113b", qop=auth, nc=00000004
    Content-Type: application/x-as-feature-event+xml
    Max-Forwards: 70
    User-Agent: Yealink SIP-T46G 28.73.0.16
    Expires: 3630
    Event: as-feature-event
    Content-Length: 185

    <?xml version="1.0" encoding="ISO-8859-1"?><SetDoNotDisturb
xmlns="http://www.ecma-international.org/standards/ecma-323/csta/ed3"><doNotDisturbOn>true</doNotDisturbOn></SetDoNotDisturb>



And turning off:
    ------------------------------------------------------------------------
    SUBSCRIBE sip:1000@192.168.1.175:5060 SIP/2.0
    Via: SIP/2.0/UDP 192.168.1.106:5062;branch=z9hG4bK264963740
    From: <sip:1000@192.168.1.175>;tag=2420321046
    To: <sip:1000@192.168.1.175>;tag=YKBD9deNLnnN
    Call-ID: 3592119465@192.168.1.106
    CSeq: 6 SUBSCRIBE
    Contact: <sip:1000@192.168.1.106:5062>
    Authorization: Digest username="1000", realm="192.168.1.175",
nonce="71a73470-5561-11e4-9781-81e6a6ef6342",
uri="sip:1000@192.168.1.175:5060",
response="4042dfcf7590c1d5187aa4b260275991", algorithm=MD5,
cnonce="0a4f113b", qop=auth, nc=00000005
    Content-Type: application/x-as-feature-event+xml
    Max-Forwards: 70
    User-Agent: Yealink SIP-T46G 28.73.0.16
    Expires: 3630
    Event: as-feature-event
    Content-Length: 186

    <?xml version="1.0" encoding="ISO-8859-1"?><SetDoNotDisturb
xmlns="http://www.ecma-international.org/standards/ecma-323/csta/ed3"><doNotDisturbOn>false</doNotDisturbOn></SetDoNotDisturb>


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