[OpenSER-Users] TCP better than UDP??

[Klaus Darilion]

Juha Heinanen schrieb:
> franz.edler at inode.at writes:
> 
>  > I cannt comment on the battery life issue, but the problem is with IP
>  > fragmentation. 
> 
> tcp's better battery life may be related to the fact that if the phone
> is behind nat, the phone itself will keepthe nat binding open by sending
> every 20 MINUTES or so a keepalive message to the proxy. 

Does NAT devices keep TCP bindings open for 20 minutes if there is no 
traffic?

regards
klaus

 > if you use
> udp, proxy must nat ping the phone from the proxy once at about 20
> SECONDS.
> 
> -- juha
> 
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