[Asterisk-code-review] chan_sip.c Fix pickup on channel that are in AST_STATE_DOWN (asterisk[18])

[Mark Petersen]

Mark Petersen has uploaded this change for review. ( https://gerrit.asterisk.org/c/asterisk/+/17964 )


Change subject: chan_sip.c Fix pickup on channel that are in AST_STATE_DOWN
......................................................................

chan_sip.c Fix pickup on channel that are in AST_STATE_DOWN

resolve issue with pickup on device that uses "183" and not "180"

ASTERISK-29832

Change-Id: I4c7d223870f8ce9a7354e0f73d4e4cb2e8b58841
---
M channels/chan_sip.c
A doc/CHANGES-staging/chan_sip_pickup_AST_STATE_DOWN.txt
2 files changed, 11 insertions(+), 1 deletion(-)



  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/64/17964/1

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 50b0229..beb512b 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -26605,7 +26605,14 @@
 		if (!error && ast_strlen_zero(pickup.exten) &&
 				ast_channel_state(replaces_chan) != AST_STATE_RINGING &&
 				ast_channel_state(replaces_chan) != AST_STATE_RING &&
-				ast_channel_state(replaces_chan) != AST_STATE_UP) {
+				ast_channel_state(replaces_chan) != AST_STATE_UP &&
+				/*
+				* Check the down state as well because some SIP devices do not
+				* give 180 ringing when they can just give 183 session progress
+				* instead. same fix the one in ast_can_pickup
+				* git show 0a8f9d2cf08
+				*/
+				ast_channel_state(replaces_chan) != AST_STATE_DOWN) {
 			ast_log(LOG_NOTICE, "Supervised transfer attempted to replace non-ringing or active call id (%s)!\n", replace_id);
 			transmit_response_reliable(p, "603 Declined (Replaces)", req);
 			error = 1;
diff --git a/doc/CHANGES-staging/chan_sip_pickup_AST_STATE_DOWN.txt b/doc/CHANGES-staging/chan_sip_pickup_AST_STATE_DOWN.txt
new file mode 100644
index 0000000..e658faa
--- /dev/null
+++ b/doc/CHANGES-staging/chan_sip_pickup_AST_STATE_DOWN.txt
@@ -0,0 +1,3 @@
+Subject: chan_sip.c
+
+resolve issue with pickup on device that uses "183" and not "180"

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Gerrit-Project: asterisk
Gerrit-Branch: 18
Gerrit-Change-Id: I4c7d223870f8ce9a7354e0f73d4e4cb2e8b58841
Gerrit-Change-Number: 17964
Gerrit-PatchSet: 1
Gerrit-Owner: Mark Petersen <bugs.digium.com at zombie.dk>
Gerrit-MessageType: newchange
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