chan_sip: Allow call pickup to set the hangup cause.

The call pickup implementation in chan_sip currently sets the channel
hangup cause to "normal clearing" if call pickup is successfully
performed. This action overwrites the "answered elsewhere" hangup cause
set by the call pickup code and can result in the SIP device in
question showing a missed call when it should not.

This change sets the hangup cause to "normal clearing" as a
default initially but allows the call pickup to change it as
needed.

ASTERISK-25346 #close

Change-Id: I00ac2c269cee9e29586ee2c65e83c70e52a02cff

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index bd3e31ee34951775f4701e6e32e6da2b3cb1a113..286386d80d377c9d19778d3dda8e56aeb2f2bc4f 100644 (file)
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -24522,10 +24522,9 @@ static void *sip_pickup_thread(void *stuff)
        struct ast_channel *chan;
        chan = stuff;
 
+       ast_channel_hangupcause_set(chan, AST_CAUSE_NORMAL_CLEARING);
        if (ast_pickup_call(chan)) {
                ast_channel_hangupcause_set(chan, AST_CAUSE_CALL_REJECTED);
-       } else {
-               ast_channel_hangupcause_set(chan, AST_CAUSE_NORMAL_CLEARING);
        }
        ast_hangup(chan);
        ast_channel_unref(chan);