[Asterisk-Users] Spring VON Wrap Up

[Olle E. Johansson]

James Golovich wrote:
> 
> On Mon, 5 Apr 2004, Scott Laird wrote:
> 
> 
>>Could someone explain to me why anyone in their right mind would ever 
>>want to run VoIP (or any lossy real-time data) over TCP?  Unless I'm 
>>missing something, the effects of packet loss would be almost perfectly 
>>pessimal.  Every time you lose a packet, the receiver stalls and then 
>>can't catch up, so you get horrifically huge delays.  Does it actually 
>>gain something for anyone doing voice or video?
> 
> 
> The RTP would still be UDP.  Just the SIP part (call signaling) would be
> TCP.  SIP can be TCP or UDP, many implementations (including asterisk)
> support only UDP.  TCP for SIP (especially with TLS) will reduce the risk
> of a mitm attack.

...and SIP over TCP is a requirement in the SIP RFC...

/O