[asterisk-users] Problems with voice lag/delay

[Gregory Machin]

Hi
I have setup Elastix to do some testing, and I have zoiper installed
on two machines and two ip phones(Grandstream Budge Tone-100), no
matter in what combination there is always a delay of voice between
the ends. I have set all the devices to use PCMU codec all the devices
are connected to the same switch  (even tried another switch).. what
else can cause this ?? what configuration should I check on asterisk
???

Greg