The Grandstream GXP1625 IP phones are geared specifically for small to mid-sized businesses. Cost effective and feature rich, these phones offer support for multiple SIP Accounts/Call Appearances, HD Audio, Conference Calling, PoE (Power Over Ethernet), and more. Automated provisioning using TR-069 or encrypted XML configuration file, SRTP and TLS for advanced security protection, 802.1 x for media access control.