[Asterisk-Users] connect more the one phone to ONE sip Acoount

[Andreas Koch]

Hello,
how is it possible to connect (register)  more the one Phone to One 
Sip-Acoount.

With, for example sipgate.de this is not a special feature, it is common.
We have users, what like to have more then one Phone, -> Homeoffice and Desk

Rigth now if a other phone registers whith the data, the first ist removed.

Thanks
Andreas Koch