[asterisk-bugs] [Asterisk 0011688]: [patch] Allow Sipura handsets (SPA942) to use Asterisk SLA via implementation of Broadsoft Sip extensions

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=11688 
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Reported By:                grossi
Assigned To:                
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Project:                    Asterisk
Issue ID:                   11688
Category:                   Channels/chan_sip/NewFeature
Reproducibility:            N/A
Severity:                   feature
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.4.16.2 
SVN Branch (only for SVN checkouts, not tarball releases):  1.4  
SVN Revision (number only!): 96644 
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             2008-01-05 10:58 CST
Last Modified:              2008-11-20 00:42 CST
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Summary:                    [patch] Allow Sipura handsets (SPA942) to use
Asterisk SLA via implementation of Broadsoft Sip extensions
Description: 
Modifications in chan_sip.c and pbx.h to accommidate rudimentary
implementation of Broadsoft SIP Access side extensions with the short term
goal of achieving SLA functionality for Sipura phones (tested on SPA942's)
. 

Currently I have full SLA compatability with SPA942's working as well as
integration with other (AASTRA 53i) SLA compatible phones on asterisk. 


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 (0095153) joak0 (reporter) - 2008-11-20 00:42
 http://bugs.digium.com/view.php?id=11688#c95153 
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The patch is still needed. As stated by the reporter this also applies to
Aastra phones, and it seems Polycom also implements SLA in this manner
only. Per the Polycom documentation:

Shared Call Appearance Signaling
                   A shared line is an address of record managed by a call
server. The server
                   allows multiple end points to register locations
against the address of record.
                   The phone supports shared call appearances (SCA) using
the
                   SUBSCRIBE-NOTIFY method in the “SIP Specific Event
Notification”
                   framework (RFC 3265). The events used are:
                   •   “call-info” for call appearance state
notification
                   •   “line-seize for the phone to ask to seize the
line 

Issue History 
Date Modified    Username       Field                    Change               
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2008-11-20 00:42 joak0          Note Added: 0095153                          
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