Computer-Telephony Integration (CTI) Enable/Disable

Use the following procedure to enable or disable the CTI interface.

NOTE: The default for the CTI interface is enabled.
The 4601, 4601+, 4602, 4602SW, 4602SW+, and 4690 do not support the CTI interface. In addition, only telephones with H.323 software support the CTI interface.

1. While the telephone is on-hook and idle, press the following sequence of keys on the faceplate of the telephone:

Mute 2 8 4 # (Mute C T I #)

NOTE: Press the Mute button momentarily. Do not press this button while pressing other keys/buttons. The 4630/4630SW IP Telephones and the 4690 IP Conference Telephone do not have a dedicated Hold button. For all other 4600 Series IP Telephones, pressing the Hold button instead of the Mute button also works.

One of the following texts displays left-justified at the top of the display, depending on the current value of the CTI:

2. Press the 1 or 0 button to enable or disable the CTI interface respectively, or the # button to leave the current value. The following text displays left-justified at the top of the display:

where 497xx is the value of the UDP port for CTI.

3. Enter a valid value between 49714 and 49721, inclusive for the UDP Port for CTI.

The following text displays left-justified at the top of the display:

4. Press the * button to terminate the procedure, or the # button to save the new values.

If you press the # button, the following text displays.

The new values are saved, and the user interface is restored to its previous state.