uaCSTA Handsets Yealink T4 Series | PBXs and Telephone Systems | Developer Solutions

Connection Information




Handsets are configured to point to the CTI server.

Firewall Requirements:

The port specified on the Go Connect Server

PBX Information


uaCSTA handset are normal SIP handsets that are configured to connect to a uaCSTA server over SIP also. The uaCSTA session is only used for monitor and control the main SIP accounts Line 1.

Driver Requirements:


Firmware Requirements (for new installations):

Models tested with are: T40P, T41P, T42G, T46G, T48G
Firmware supported: 80,81,82,83
Note: 84 is not supported.
Example = .82 is the firmware version.
Testing completed with the Go Connect Server.

Other Requirements:

Handsets need to be configured individually (or via provisioning) to point to the uaCSTA server.