[asterisk-users] zaptel timing

[Nhadie]

Hi,

Just wondering if i can use a card just for timing instead of just using 
ztdummy? maybe use 2 port fxs or fxo card so it would not be costly.

will there be any difference on  the meetme performance if i used a 
hardware compared to just using ztdummy?

is there a limit on conference number using ztdummy? will it be more 
limited if i used hardware?

i've also read about ztrtc, is this better than ztdummy?

thank you

regards,
ron