Grandstream dp750 DECT Cordless IP Phone Base Station Parents Machine [domestic regular goods]

can i connect 8 external phone line on it?

Admin Password ? not working - can someone respond ?

Hello,can you link multiple dp750's together to work as a single unit all hooked up to a local sip server say elastix providing extentions to dp720's

How do I set up this device to an existing grandstrem set up?, there is not instructions.