SDK Audio&Video Engine and Codec

[szyd]

I know SDK takes open source project resiprocate as underlying sip stack. Furtherly I want to know audio&video engine also is build upon open source project? All codec implementation are from 3rd-party vendor, such as VocieAge g.729/amr-wb? Where does g.723 come from?
On the other hand, "early media" feature is supported at SDK?

George

[JasonZ]

Current versions of the COM SDK use our own proprietary audio and video engine. Most codec implementations are from 3rd party vendors. However some like Speex are from open source projects.

Early media is supported.