[Asterisk-Dev] Codec license for Asterisk

[ops at infoserve.net]

Hi List,

I noticed someone in this list asked how many G.729 codec license he should purchase for his Asterisk box. I am new to VoIP and Asterisk. Why do we need to buy codec licenses for th Asterisk? I thought codecs are built into the SIP phones. If a call is made from one SIP phone to another SIP phone, shouldn't the codecs inside those two phones take care of things. The only situation I can think of needing codec license is when a call is make from a SIP phone through Asterisk to the PSTN network. In that case the Asterisk box wil handle the codec functions. Am I correct?

Also, if I need to buy the G.729 license who and where can I buy them?

Thanks.

Oliver Shaw