Open box by never used.

Features:

 4 or 8 FXS ports  Two RJ-45 ports (switched or routed)  Multiple SIP accounts & profiles (4,8 / configurable through 2 profiles)  Supports Voice Codecs: G711(a/µ, Annex I & II), G723.1A, G726 (ADPCM with 16/24/32/40 bit rates), G729 A/B/E, iLBC, T.38 Fax  Comprehensive Dial Plan support for Outgoing calls.  G.168 Echo Cancellation, Voice Activation Detection (VAD)  Comfort Noise Generation (CNG), and Packet Loss Concealment (PLC)  Supports PSTN/PBX analog telephone sets or analog trunks 

In the box:

-GrandStream unit

-Power Supply

-Manual