[Users] Duplicate INVITEs

[Klaus Darilion]

Mahesh Paolini-Subramanya wrote:
> We're seeing sporadic situations where fones 
> a) send an INVITE 
> b) ignore the 100-Trying response, and instead 
> c) send another INVITE with the same sequence number. 
> 
> The question is, What should happen here? 

If the message is completely identical then it is a retransmission. 
Retransmissions should be detected by tm module (e.g. t_relay()) and 
absorbed,

regards
klaus


> Currently, we send back a 500 response (server error). 
> Is this correct? (i think not, cause it invariably causes the fone to go fast busy). 
> Is this some other response that should occur? 
> 
> poring over 3261 resulted in a headache, and no additional clarity... 
> 
> 
> 
> 
> 
> 
> 
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-- 
Klaus Darilion
nic.at