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Today's Topics:
1. DTMF / SIP info (Maris)
----------------------------------------------------------------------
Message: 1
Date: Mon, 11 May 2009 12:38:22 +0200
From: Maris <address@hidden>
Subject: [Linphone-users] DTMF / SIP info
To: address@hidden
Message-ID: <address@hidden>
Content-Type: text/plain; format=flowed; delsp=yes; charset=utf-8
Hi,
according to following link from 2006:
http://osdir.com/ml/voip.linphone.user/2006-04/msg00030.html
Linphone does not support relaying received digits to the user. Quote:
"RFC2833 tones are detected but not relayed through the linphonecore api.
You'll need to hack the on_dtmf_received() function in file audiostream.c
in
mediastreamer or mediastreamer2"
Is this hack still required with 3.0.x?
And should I place the hack somewhere else when SIP info messages should
be reported?
I'm using linphonec in a pipe construct from my application. Using
Linphonec I'm already catching messages as follows (example Tcl script):
====================================================
proc linphone_start {} {
set fid [open |linphonec r+]
fconfigure $fid -buffering line -blocking 0
fileevent $fid readable {readfrompipe $fid}
}
set count 0
proc readfrompipe {fid} {
global count
incr count
set response [read $fid]
puts -nonewline "Response $count: $response "
# note each switch action for the sake of this example only
outputting
text to the console
switch -glob $response {
Connected* {puts "hi, you are connected now!"}
"Call terminated*" {puts "the call has been terminated..."}
"User is busy*" {puts "Busy, please try again later."}
"Could not reach*" {puts "User is probably not registered
yet."}
Signal=* { --- here a following digit to being processed in
the
application --- }
Terminating..* {close $fid}
}
}
====================================================
I'd use the Signal=n text which appears upon linphonec started with -d
start option, while the SIP server is configured as to force SIP info
messages.
Info: Standard dtmf reception is reported by an ortp-message in debug
mode
(e.g.
ortp-message-Receiving dtmf 3.).
Rob
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