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chan_pjsip: Fix ability to send UPDATE on COLP

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When connected_line_method is "invite", we're supposed to determine
if the client can support UPDATE and if it can, send UPDATE instead
of INVITE to avoid the SDP renegotiation.  Not only was pjproject
not setting the PJSIP_INV_SUPPORT_UPDATE flag, we were testing
that invite_tsx wasn't NULL which isn't always the case.

* Updated chan_pjsip/update_connected_line_information to drop the
  requirement that invite_tsx isn't NULL.
* Submitted patch to pjproject sip_inv.c that sets the
  PJSIP_INV_SUPPORT_UPDATE flag correctly.
* Updated pjsip.conf.sample to clarify what happens when "invite"
  is specified.

ASTERISK-27095

Change-Id: Ic2381b3567b8052c616d96fbe79564c530e81560
This commit is contained in:
George Joseph
2017-06-29 13:50:14 -06:00
parent 366971827a
commit c0c99c7618
4 changed files with 48 additions and 6 deletions
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11
configs/samples/pjsip.conf.sample
View File

@@ -608,8 +608,15 @@
;direct_media_glare_mitigation=none ; Mitigation of direct media re INVITE
; glare (default: "none")
;direct_media_method=invite ; Direct Media method type (default: "invite")
;connected_line_method=invite ; Connected line method type (default:
; "invite")
;connected_line_method=invite ; Connected line method type.
; When set to "invite", check the remote's
; Allow header and if UPDATE is allowed, send
; UPDATE instead of INVITE to avoid SDP
; renegotiation. If UPDATE is not Allowed,
; send INVITE.
; If set to "update", send UPDATE regardless
; of what the remote Allows.
; (default: "invite")
;direct_media=yes ; Determines whether media may flow directly between
; endpoints (default: "yes")
;disable_direct_media_on_nat=no ; Disable direct media session refreshes when