diff options
-rwxr-xr-x | channels/chan_sip.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c index 5af31effe..e7440ee78 100755 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -52,6 +52,7 @@ #define SIPDUMPER #define DEFAULT_DEFAULT_EXPIRY 120 #define DEFAULT_MAX_EXPIRY 3600 +#define EXPIRY_GUARD_SECS 15 #define SIP_DTMF_RFC2833 (1 << 0) #define SIP_DTMF_INBAND (1 << 1) @@ -2540,7 +2541,10 @@ static int transmit_register(struct sip_registry *r, char *cmd, char *auth) } else p = r->call; } else { - build_callid(r->callid, sizeof(r->callid), __ourip); + if (!r->callid_valid) { + build_callid(r->callid, sizeof(r->callid), __ourip); + r->callid_valid = 1; + } p=sip_alloc( r->callid, &r->addr, 0); if (!p) { ast_log(LOG_WARNING, "Unable to allocate registration call\n"); @@ -3919,7 +3923,9 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_ ast_sched_del(sched, r->expire); expires=atoi(get_header(req, "expires")); if (!expires) expires=default_expiry; - r->expire=ast_sched_add(sched, (expires-2)*1000, sip_reregister, r); + if (expires > EXPIRY_GUARD_SECS) + expires -= EXPIRY_GUARD_SECS; + r->expire=ast_sched_add(sched, expires*1000, sip_reregister, r); } else ast_log(LOG_WARNING, "Got 200 OK on REGISTER that isn't a register\n"); |