Release 6.5 was made generally available in January 2015 and is supported for installation on Avaya 9601, 9608, 9608G, 9611G, 9621G, 9641G, and 9641GS IP deskphones. This is NOT the latest release of SIP software for installation on Avaya 96x1 IP deskphones. The latest release is recommended for new development.
- SIP 6.5 supports the Push and Web APIs.
- SIP 6.5 does not support the phonexml push type.