Merged revisions 43635,43843-43844,43846 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

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r43635 | pcadach | 2006-09-26 03:26:12 +0600 (Втр, 26 Сен 2006) | 1 line

Fix ASN1 description of non-standard Cisco extensions
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r43843 | pcadach | 2006-09-28 12:01:37 +0600 (Чтв, 28 Сен 2006) | 1 line

Don't treat unknown control frames as voice
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r43844 | pcadach | 2006-09-28 12:02:45 +0600 (Чтв, 28 Сен 2006) | 1 line

Don't warn on HOLD/UNHOLD control frames
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r43846 | pcadach | 2006-09-28 16:51:21 +0600 (Чтв, 28 Сен 2006) | 1 line

Do not open transmit channel until TCS is received
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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@43853 65c4cc65-6c06-0410-ace0-fbb531ad65f3