I would like to get my doubts clarified regarding SIPp.
I would like to know how to use T1,T2 and F timers in SIPp.
I have to do this when I send a MESSAGE with T1 value set to 3 secs, T2
value set to 16 secs and F value set to 30 secs.
Second SIP MESSAGE transmitted after 3 seconds (i.e. after T1 expires) and
subsequently the SIP MESSAGE is transmitted in 6 sec, 12 sec.etc ( i.e. T1
sec, 2 *(2*T1) sec, 2 *2*(2*T1) sec, 2*2*2*(2*T1) .etc) time interval till
the time interval reach to 16 Sec (T2 Timer).
After reaching the re-transmission interval to 16 sec (T2 timer), then the
SIP MESSAGE will be re-transmitted after every 16 sec till the sum of the T1
and T2 time intervals reaches to the SIP Timer F expires (i.e. 30 sec).
The SIP MESSAGE is transmitted for 30 seconds (i.e. till Timer F expiry) in
3 sec, 6 sec, 12 sec, and 16 sec time intervals.
Note
: The last SIP MESSAGE re-transmission (i.e. 16 second interval) may not
happen, because the total sums of time intervals cross the SIP timer expiry
(i.e. 30 sec- Timer F).
Please clarify my doubt.
Thanks in advance,
Regards,
Shemida
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