This score reflects the tested distance a phone can maintain an ... of homes or when you go outside your home. The manufacturer stated maximum number of cordless handsets that can be registered ...

Works with Grandstream GXP-2010, GXP-2020, GXP-2100, GXP-2110, GXP-2120, GXP-280, GXP-285,BT200,BT201, Zultys ZIP 4x4, ZIP 4x5 , Pansasonic ,AT&T Cordless phones with 2.5mm jack. IF YOUR PHONE IS ...