Grandstream IP Voice Telephony GXP Series IP Phones Model: GXP2140 and GXP1615

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Product Title: Grandstream GXP Series IP Phones – Models GXP2140 & GXP1615
📦 Product Description:
🔹 Brand: Grandstream
🔹 Models:
GXP2140
GXP1615
Type: SIP-based IP Voice Telephony Phone

🔌 Key Specifications
🧠 General
Device Type: Enterprise-grade IP desk phones designed for VoIP and unified communications. Grandstream
Protocol: SIP (Session Initiation Protocol). Grandstream
Deployment: Suitable for offices, call centers, and IP PBX systems. Grandstream

📊 Model-Specific Details
📞 Grandstream GXP2140
Display: 4.3″ color TFT LCD screen
Lines: Up to 4 SIP accounts
Ethernet Ports: 2 × Gigabit Ethernet (RJ-45) with PoE support
Audio: HD audio with wideband codecs
Conferencing: 5-way audio conferencing
Additional Features:
Bluetooth support
USB port for expansion/modules
Integrated EHS support for headsets

📞 Grandstream GXP1615
Display: 132 × 48 pixel LCD (monochrome)
Lines: 1 SIP account
Ethernet Ports: 2 × Fast Ethernet (RJ-45) with PoE support
Audio: HD audio on handset and speaker
Conferencing: 3-way audio conferencing
Ideal Use: Basic office users and common-area phones

⚙️ Common Features (Both Models)
HD Voice Quality: Crystal-clear audio with advanced codecs. Grandstream
PoE Support: Power over Ethernet for clean installations. Grandstream
Security: TLS, SRTP, HTTPS, 802.1X authentication. Grandstream
Provisioning: Auto-provisioning and centralized management supported. Grandstream
Compatibility: Works with most SIP-based IP PBX systems (Grandstream, Asterisk, 3CX, etc.).

📶 Physical & Environmental
Form Factor: Desktop IP phones with adjustable stands
Power: PoE or external power adapter (adapter may not be included)
Operating Temperature: 0 °C to 40 °C

⚠️ Limitations
VoIP Required: Requires SIP server or IP PBX to function.
No Wi-Fi: Ethernet connection required (wired only).
Model Differences: GXP2140 suited for power users; GXP1615 is entry-level.

CONDITION: USED: The item was previously used and shows wear from consistent use, but it is fully operational and functions as intended. The item may show some limited signs of wear with small scratches, dents, etc.
PACKAGE/PRODUCT INCLUSIONS:
For ‘Used-Conditions’ VoIP and telephony devices, a complementary handset, cord, PoE adapter, or power cable may or may not be included in the packaging dependi