[Asterisk-Users] RE:Connection Problem - GrandStream

[dkwok at iware.com.au]

|Zap/1. It works. But when I try to call Zap/g1 at #1 from a GS (SIP)
|phone connected to #2, I get an error message at #1 that looks like * |#1
|does not know which codec I use to connect my SIP phone:

It does look like codec problem. GS only has g729, ulaw and alaw, 
others. * only do gsm, alaw and ulaw, others. So you have to set your GS 
to do ulaw and set your codec accordingly in your sip.conf as well.

-- 
David Kwok

FWD#/IAXTEL# : 17001813482 ext 1002