Grand stream GRP2636 Professional IP Phones

The Grandstream GRP2636 is a robust 12-line, carrier-grade SIP phone built for heavy-duty use in enterprises and service-provider environments. It combines HD audio, built-in dual-band Wi-Fi & Bluetooth, PoE-enabled dual Gigabit ports, strong security, and centralized provisioning via GDMS for efficient large-scale deployment.

Grand stream GRP2636 Professional IP Phones Specifications

• Lines & SIP Accounts: Supports 12 lines and up to 6–16 SIP accounts

• Display: 4.3″ color TFT LCD with 480×272 resolution

• Programmable Keys: 12 physical line keys,https://www.city.co.ke 24 multi-purpose keys, 32 virtual keys, 5 XML softkeys

• Audio Codecs: G.711, G.722 (HD), G.729A/B, G.726, G.723, iLBC, OPUS

• Speakerphone: Full-duplex HD speaker with dual-microphone noise shield

• Ethernet & PoE: Dual Gigabit Ethernet ports with PoE (IEEE 802.3af compliant)

• Wi‑Fi: Integrated dual-band Wi-Fi 6 (802.11 a/b/g/n/ac/ax)

• Bluetooth: Built-in Bluetooth for headset pairing and mobile connectivityhttps://www.city.co.ke

• USB & Headset Support: USB-A port and RJ9 headset jack with EHS support

• Security Features: Secure boot, encrypted configuration, TLS/SRTP, 802.1x, AES-256

• Provisioning: Zero-touch provisioning via GDMS, TR-069, and encrypted XML files

• Call Handling Features: Call park, pickup, hold, forward, transfer, shared line appearance, 5-way conferencing

• Directory & Logs: Phonebook supports up to 2000 entries; call history up to 2000 records

• QoS Support: Layer 2 (802.1Q/P) and Layer 3 (ToS, DiffServ, MPLS) quality-of-service support

• Power Supply: 12V DC adapter (~3.2W) or via PoE (~4.3W max)

• Dimensions & Weight: 220 × 210 × 82 mm; approximately 880 g

• Mounting Options: Adjustable dual-angle stand and wall-mountable design

• Environmental Conditions: Operating temperature 0–40°C; humidity 10–90% non-condensing

• Language Support: Multi-language interface including English, French, Spanish, Chinese, and others