The GXP1628 is a standard Grandstream IP Phone designed for small businesses. Based on Linux it offers 2 SIP lines 3 programmable XML keys 8 programmable BLF keys HD audio and 3-way conferencing. It includes a 132 × 48 LCD display for clear visibility and dual Gigabit network ports with built-in PoE. It supports multiple languages Plantronics EHS call waiting and a downloadable phonebook — making it a reliable easy-to-use and high-quality IP phone.

Key Features

• 2 lines (SIP accounts) 3 programmable XML keys and 3-way conferencing.
• 8 programmable BLF extension keys.
• 132 × 48 graphic LCD display.
• HD audio for crystal-clear communication.
• Dual Gigabit network ports with integrated PoE.

Telephony Features

Hold transfer forward (unconditional/no answer/busy) 3-way conference call park/pickup downloadable phonebook (XML LDAP up to 500 contacts) call waiting call history (200 records) auto-dial auto-answer click-to-dial flexible dial plan hot desking personalized ringtones server redundancy and fail-over support.

Codecs

G.711 µ/a G.722 (wideband) G.723 (pending) G.726-32 G.729 A/B DTMF (in-band RFC2833 SIP INFO) VAD CNG AEC PLC AJB AGC.

Interfaces

• Dual-switched Gigabit Ethernet ports with auto-sensing.
• RJ9 headset jack (supports EHS with Plantronics headsets).

Security and QoS

User and admin-level access control MD5/MD5-sess authentication AES-256 configuration encryption TLS SRTP HTTPS and 802.1x. Layer 2 QoS (802.1Q/802.1P) and Layer 3 QoS (ToS DiServ MPLS).

Physical and Electrical Features

• Universal power supply: 100–240 VAC 50–60 Hz / Output: 5 VDC 600 mA.
• PoE 802.3af Class 2 (3.84–6.49 W).
• Desk or wall mountable.
• Dimensions: 222.5 × 208.5 × 76.2 mm.
• Weight: 0.8 kg • Operating temperature: 0–40 °C.

Package Contents

GXP1628 phone handset with cord stand universal power adapter network cable Quick Installation Guide brochure and GPL license.