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Adding Realtime Text support (T.140) to Asterisk

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T.140/RFC 2793 is a live communication channel, originally
created for IP based text phones for hearing impaired. 
Feels very much like the old Unix talk application.

This code is developed and disclaimed by John Martin of Aupix, UK.
Tested for interoperability by myself and Omnitor in Sweden,
the company that wrote most of the specifications.

A big thank you to everyone involved in this.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@54838 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Olle Johansson
2007-02-16 13:35:44 +00:00
parent 84d1cf37fe
commit ba32ee49d0
11 changed files with 513 additions and 97 deletions
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2
include/asterisk/frame.h
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@@ -268,7 +268,7 @@ extern struct ast_frame ast_null_frame;
#define AST_FORMAT_T140 (1 << 25)
/*! Maximum text mask */
#define AST_FORMAT_MAX_TEXT (1 << 26)
#define AST_FORMAT_TEXT_MASK (((1 << 27)-1) & ~(AST_FORMAT_AUDIO_MASK) & ~(AST_FORMAT_VIDEO_MASK)))
#define AST_FORMAT_TEXT_MASK (((1 << 27)-1) & ~(AST_FORMAT_AUDIO_MASK) & ~(AST_FORMAT_VIDEO_MASK))
enum ast_control_frame_type {
AST_CONTROL_HANGUP = 1, /*!< Other end has hungup */