Dear All,
According to the rfc2543bis-02, section 10.3.1, it is
mentioned:
A server which transmits a provisional response should retransmit it
upon reception of a duplicate request. A server which transmits a
final response should retransmit it with an interval that starts at
T1 seconds, and doubles for each subsequent packet until it reaches
T2 seconds. Response retransmissions cease when an ACK request is
received or the response has been transmitted seven times.
Does that mean the response retransmission (0.5 + 1 + 2 + 4 + 4 + 4 + 4 =
19.5s) doesn't follow the 32s window?
Also, the first paragraph of section 10.3.1 reads:
A SIP client using an unreliable transport protocol SHOULD retransmit
a SIP INVITE request with an interval that starts at T1 seconds, and
doubles after each packet transmission. The client ceases
retransmissions if it receives a provisional or definitive response,
or once it has sent a total of seven request packets. A UAC MAY send
a BYE or CANCEL request after the seventh retransmission.
Shouldn't the last sentence read ' A UAC MAY send
a BYE or CANCEL request after the sixth retransmission' since the
client can only send a total of seven request packets (i.e first initial
request and 6 retransmissions)?
Thanks for your help
Regards,
Victor
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