[Asterisk-Users] TDMoE or IAX?

[Peter Svensson]

On Sun, 19 Dec 2004, Eric Bishop wrote:

> Apart from the the coolness factor can anyone explain to me in what
> situation one would use TDMoE rather than IAX for communication
> betwwen 2 Asterisk servers?

There are two advantages with TDMoE:

 * low latency (prevents far end echo from going from nice sidetone to 
   irritating percevied echo)
 * supports full pri signalling (hangupcause, type of number etc)

There are disadvantages as well compared to iax:

 * non routeable (local ethernet only)
 * channels have to be preconfigured
 * more?

I guess the key factor is if you need the low almost-tdm latency.

Peter