Navigate to Elements > Communication Manager > Endpoints > Manage Endpoints.
Select the H.323 station and click Edit.
On the Edit Endpoint page, in the Template field, enter 9641SIPCC.
You can also use other SIPCC template if the customer uses the stations as a failback mechanism on other Session Initiation Protocol (SIP) client. For example, Workplaces, J100 or 96xx phones.
Click the Button Assignment (B) tab.
On the Main Buttons tab, configure the buttons by selecting the following from the drop-down list:
agnt-login
after-call
auto-in or manual-in
aux-work
work code (optional)
Click Commit.
The H.323 station conversion to SIP on Avaya Aura® Communication Manager is now complete.