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create a UDPTL structure in create_addr_from_peer() if it does not already exist for T38 

This is required to create a UDPTL structure in create_addr_from_peer() to handle the
scenario where 't38pt_udptl=yes' is not defined in the [general] section of sip.conf but 
is defined the peer's context.  I tested this patch by enabling t38pt_udptl in the 
[general] section on one system and only enabling t38pt_udptl in a peer's context on
the system sending a fax.  Without the patch, the sending system will fail to initiate
T38 negotiation with the warning message, "No way to add SDP without an UDPTL structure".
When this patch is applied the sending side will successfully initiate T38 negotiation.



git-svn-id: http://svn.digium.com/svn/asterisk/trunk@176705 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
dhubbard 2009-02-17 21:59:38 +00:00
parent 509eed412d
commit 9f40716814
1 changed files with 4 additions and 0 deletions
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4
channels/chan_sip.c
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@ -4709,6 +4709,10 @@ static int create_addr_from_peer(struct sip_pvt *dialog, struct sip_peer *peer)
}
dialog->prefs = peer->prefs;
if (ast_test_flag(&dialog->flags[1], SIP_PAGE2_T38SUPPORT)) {
if (!dialog->udptl) {
/* t38pt_udptl was enabled in the peer and not in [general] */
dialog->udptl = ast_udptl_new_with_bindaddr(sched, io, 0, bindaddr.sin_addr);
}
ast_copy_flags(&dialog->t38.t38support, &peer->flags[1], SIP_PAGE2_T38SUPPORT);
set_t38_capabilities(dialog);
dialog->t38.jointcapability = dialog->t38.capability;