[Asterisk-Dev] Uncommon callback

[Steve Underwood]

David Woodhouse wrote:

>On Sun, 2005-05-22 at 15:05 -0400, SteveK wrote:
>  
>
>>And you don't really want to tunnel VoIP at all over TCP if  
>>you can avoid it, because if you drop a couple of packets, you end up
>>with a lot of latency.  Same goes for PPP over SSH, for the same
>>reason.
>>    
>>
>
>Indeed. I keep intending to play with VoIP over ICMP echo packets,
>partly because the muppets in my employer's IS department have seen fit
>to block all outgoing UDP connections, but ICMP still works. 
>
>But some ISPs' routers will actually prioritise ICMP in order to do well
>in latency tests, so VoIP over ICMP might actually do better than VoIP
>over UDP :)
>  
>
The tendency for people to block ICMP completely might work against that :-)

Steve