Grandstream GXP1615 is an IP phone ideal for small and medium business and it's similar to GXP1610. GXP1615 provides a single SIP account, LCD display, call waiting option and 3-way conference; furthermore, GXP1615 also offers integrated PoE to power the device and provide a network connection.
An IP phone very easy to use with high-quality. These are its main features:
Features
1 SIP account and up to call states
Graphic LCD 132x48 (without backlit)
Up to 3-way conference
Compatible with Plantronics heasets (EHS)
Auto-provisioning using TR-069 or encrypted XML configuration file with AES