How-To Pair Grandstream DECT Handsets to DP752
Pairing a cordless handset with a base station links the devices, allowing the cordless handset to make and receive calls. To pair a new or replacement handset:
On the DP752 Base station, press and hold the 
button until the light above the tick starts to flash.
On the Cordless Handset, complete the following steps...
- Press the SUBSCRIBE soft key or MENU or to open the main menu
- Select the REGISTRATION
- Select the REGISTER Option
- Select BASE1
- Press SUBSCRIBE
- Phone will play an audible tone and return to home screen when completed.