Cortelco 2757 - Manual (Page 37)

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2.11.2 Headset
To use a headset, insert the headset plug into the headset jack of the 2757 as shown below.
After the headset is connected, press ‘HEADSET’ to make and receive calls.
3 Speed Dial & Advanced Phone Configuration
3.1 Speed Dial
The 2757 has 5 speed dial buttons. A phone number may be programmed to each speed dial
button. The web interface must be used to set a phone number for a speed dial button. Refer to
Section 2.4 to open a web connection to the 2757.
1. Click the ‘System’ link.