Operation Manual

User Guide for the SIP-T28P IP Phone
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Usage:
1. During a call, press the DSS key to activate the group listening mode.
You can then speak and listen through the handset/headset, other people at your
side can listen through speaker at the same time.
2. Press the DSS key again to deactivate the group listening mode.
Zero Touch
You can use this key feature to configure auto provision and network parameters quickly.
Dependencies: Type (Key Event)
Key Type (Zero Touch)
Usage:
1. Press the DSS key to access the zero touch screen.
2. Press the OK soft key within a few seconds.
3. Configure the network parameters in the corresponding fields.
4. Press the Next soft key.
5. Configure the auto provision parameters in the corresponding fields.
6. Press the OK soft key.
The phone will reboot to update configurations.
URL
You can use this key feature to trigger the phone to send an HTTP GET request
containing a specific URL.
Dependencies: Type (URL)
Value (the URL contained in the HTTP GET request)
Usage: Press the DSS key to trigger the phone to send an HTTP GET request containing
the URL specified in the Value field.
Keypad Lock
You can use this key feature to immediately lock the keypad of your phone instead of
long pressing . For more information, refer to Keypad Lock on page 25.
Dependencies: Type (Keypad Lock)
Usage: Press the DSS key to immediately lock the keypad of your phone instead of long
pressing .
Directory
You can use this key feature to easily access frequently used lists. For more information,
refer to Directory on page 31.
Dependencies: Type (Directory)