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Merged revisions 203909 via svnmerge from

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https://origsvn.digium.com/svn/asterisk/trunk

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  r203909 | rmudgett | 2009-06-26 20:07:52 -0500 (Fri, 26 Jun 2009) | 23 lines
  
  Merged revisions 203908 via svnmerge from 
  https://origsvn.digium.com/svn/asterisk/branches/1.4
  
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    r203908 | rmudgett | 2009-06-26 19:55:12 -0500 (Fri, 26 Jun 2009) | 16 lines
    
    The ISDN CPE side should not exclusively pick B channels normally.
    
    Before this patch, Asterisk unconditionally picked B channels exclusively
    on the CPE side and normally allowed alternative B channels on the network
    side.  Now Asterisk does the opposite.
    
    Reasons for the CPE side to normally not pick B channels exclusively:
    *  For CPE point-to-multipoint mode (i.e. phone side), the CPE side does
    not have enough information to exclusively pick B channels.  (There may be
    other devices on the line.)
    *  Q.931 gives preference to the network side picking B channels.
    *  Some telcos require the CPE side to not pick B channels exclusively.
    
    (closes issue #14383)
    Reported by: mbrancaleoni
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git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.6.0@203910 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2009-06-27 01:14:18 +00:00
parent 21af4c4acb
commit 4730b56a50
1 changed files with 5 additions and 8 deletions
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13
channels/chan_dahdi.c
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@@ -2922,15 +2922,12 @@ static int dahdi_call(struct ast_channel *ast, char *rdest, int timeout)
pri_set_crv(p->pri->pri, p->call, p->channel, 0);
}
p->digital = IS_DIGITAL(ast->transfercapability);
/* Add support for exclusive override */
if (p->priexclusive)
/* Should the picked channel be used exclusively? */
if (p->priexclusive || p->pri->nodetype == PRI_NETWORK) {
exclusive = 1;
else {
/* otherwise, traditional behavior */
if (p->pri->nodetype == PRI_NETWORK)
exclusive = 0;
else
exclusive = 1;
} else {
exclusive = 0;
}
pri_sr_set_channel(sr, p->bearer ? PVT_TO_CHANNEL(p->bearer) : PVT_TO_CHANNEL(p), exclusive, 1);