diff options
| -rw-r--r-- | channels/chan_sip.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c index 4b581917e..a6a04b96a 100644 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -5209,13 +5209,24 @@ static int transmit_invite(struct sip_pvt *p, int sipmethod, int sdp, int init) add_header(&req, p->options->authheader, p->options->auth); append_date(&req); if (sipmethod == SIP_REFER) { /* Call transfer */ - if (!ast_strlen_zero(p->refer_to)) - add_header(&req, "Refer-To", p->refer_to); - if (!ast_strlen_zero(p->referred_by)) - add_header(&req, "Referred-By", p->referred_by); + if (p->refer) { + char buf[BUFSIZ]; + if (!ast_strlen_zero(p->refer->refer_to)) + add_header(&req, "Refer-To", p->refer->refer_to); + if (!ast_strlen_zero(p->refer->referred_by)) { + sprintf(buf, "%s <%s>", p->refer->referred_by_name, p->refer->referred_by); + add_header(&req, "Referred-By", buf); + } + } } - if (p->options && !ast_strlen_zero(p->options->distinctive_ring)) - { + /* This new INVITE is part of an attended transfer. Make sure that the + other end knows and replace the current call with this new call */ + if (p->options && p->options->replaces && !ast_strlen_zero(p->options->replaces)) { + add_header(&req, "Replaces", p->options->replaces); + add_header(&req, "Required", "replaces"); + } + + if (p->options && !ast_strlen_zero(p->options->distinctive_ring)) { add_header(&req, "Alert-Info", p->options->distinctive_ring); } add_header(&req, "Allow", ALLOWED_METHODS); |