[Asterisk-Users] ZtDummy vs Hardware

[Jean-Michel Hiver]

I was wondering what could be pros and cons of ztdummy vs proper timer 
device (i.e. X100P).

I am going to set up an asterisk server in europe (to do trunking, to 
save bandwith) and I was wondering if it'll be OK to  get it going with 
ztdummy.

Furthermore, I have only a 1024/256kbps PPPOE DSL link and I need to 
squeeze 12 channels through, I was wondering which codec would be 
suitable for this? Is g.729a going to be indispensable or can I get away 
with something like GSM?

Cheers,
Jean-Michel.