[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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https://issues.asterisk.org/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:           SVN 
JIRA:                       SWP-10 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  1.4  
SVN Revision (number only!): 96644 
Request Review:              
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Date Submitted:             2008-01-05 10:58 CST
Last Modified:              2010-07-27 10:36 CDT
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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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 (0125118) joak0 (reporter) - 2010-07-27 10:36
 https://issues.asterisk.org/view.php?id=11688#c125118 
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The current and old Polycom phones only support SLA via these methods.
SPIP 3.2.2 Admin Guide Page B-10

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

SPIP 3.2.2 Admin Guide Page B-4 

Header Support The following SIP request headers are supported:

Dialog-info *not* listed, 


But also I see in the patch that you are detecting based on useragent.
There could be a better way to detect? Either way there should be a
configuration option. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-07-27 10:36 joak0          Note Added: 0125118                          
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