timer B of INVITE transaction

[gangban.lau@xxxxxxxxx (Gang Liu)]

Hi benny, nanang
     Is there any reason not follow RFC 3261 and cancel timer B after
UAC invite transaction get provisional response at calling state?

regards
Gang

static pj_status_t tsx_on_state_calling( pjsip_transaction *tsx,
	                                         pjsip_event *event )

...

2210	            /* For provisional response, only cancel retransmit when this
2211	             * is an INVITE transaction. For non-INVITE, section 17.1.2.1
2212	             * of RFC 3261 says that:
2213	             *  - retransmit timer is set to T2
2214	             *  - timeout timer F is not deleted.
2215	             */
2216	            if (tsx->method.id == PJSIP_INVITE_METHOD) {
2217	
2218	                /* Cancel timeout timer */
2219	                pjsip_endpt_cancel_timer(tsx->endpt, &tsx->timeout_timer);
2220	
2221	            } else {
2222	                if (!tsx->is_reliable) {
2223	                    tsx->retransmit_timer.id = TIMER_ACTIVE;
2224	                    pjsip_endpt_schedule_timer(tsx->endpt,
2225	                                               &tsx->retransmit_timer,
2226	                                               &t2_timer_val);
2227	                }
2228	            }