Avaya Contact Center – Extended Capacity supports the following SIP endpoints:

• Avaya J100 Series IP Phones

• Avaya 9600 Series IP Deskphones

• Avaya Agent for Desktop

• Avaya Workplace Client

Avaya Contact Center – Extended Capacity does not support H.323 endpoints. After migrating data to Avaya Contact Center – Extended Capacity, upgrade H.323 endpoint firmware to SIP. If you cannot upgrade the endpoint firmware to SIP, you need to replace these endpoints with SIP phones.

For more information about supported endpoint models, see the interoperability section in Avaya Contact Center – Extended Capacity Solution Description.