Grandstream GXP1625, VoIP phone, Call Capability 3-Way, Call Hold, Call Waiting, Call Transfer, Call Forwarding, LCD display, 132 x 48 pixels, Security TLS, 256-bit AES, EAP-MD5, IEEE 802.1X, nt port 2 x Ethernet 10Base-T/100Base-TX, Headset jack / RJ-9, Stand, Power adapter, Network cable, Black. The GXP1620/25 is a reliable Basic IP phone for the user who requires standard features for a light to medium call volume. Stay in touch with others with its 2 lines/SIP accounts, enjoy crystal clear HD audio and utilize its dual-switched 10/100 mbps ports.