[Asterisk-Users] Spring VON Wrap Up

[Scott Laird]

On Apr 5, 2004, at 12:34 PM, 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.

Ah, okay.  That makes sense.  Thanks.


Scott