Grandstream GRP2612G 4-line IP Phone

Grandstream GRP2612G 4-Line IP Phone is a carrier-grade professional VoIP desk phone designed for enterprise environments, service providers, and businesses that require high-performance communication with scalable management. It supports up to 4 lines and 4 SIP accounts, making it suitable for busy users handling multiple calls simultaneously. With Gigabit Ethernet connectivity, HD audio, a 2.4-inch color LCD display, and centralized provisioning through Grandstream Device Management System (GDMS), the GRP2612G delivers fast, secure, and reliable voice communication for modern business networks.

Product Features

4-Line and Multi-Account Communication Support

The GRP2612G supports up to 4 lines and 4 SIP accounts, enabling users to manage multiple extensions, departments, or service providers from a single device. It also includes programmable multi-purpose line keys for efficient call handling.

Gigabit Network Performance for High-Speed Connectivity

Equipped with dual 10/100/1000 Mbps Gigabit Ethernet ports, the GRP2612G ensures high-speed and stable network performance, making it ideal for environments with heavy data and voice traffic.

HD Audio with Wideband Voice Support

The phone delivers HD voice quality on both handset and speakerphone, supporting wideband codecs such as G.722 and Opus for clear, natural, and professional communication.

5-Way Audio Conferencing

Built-in 5-way conferencing allows multiple participants to join a call directly from the device, improving collaboration without requiring external conferencing systems.

Customizable Faceplate for Branding

The GRP2612G includes a swappable faceplate design, allowing organizations and service providers to customize branding for consistent corporate identity across deployments.

Centralized Cloud Management via GDMS

The device integrates with Grandstream Device Management System (GDMS), enabling zero-touch provisioning, remote configuration, firmware updates, monitoring, and centralized fleet management.

Enterprise-Grade Security Protection

Security features include secure boot, dual firmware images, encrypted data storage, TLS, SRTP, and HTTPS support to protect communications and prevent unauthorized access.

Advanced Call Handling Features

The phone supports programmable keys, BLF functionality, call hold, transfer, forward, call history, and speed dial features to enhance daily productivity.

Professional Headset Integration

An RJ9 headset port with Electronic Hook Switch (EHS) support enables seamless integration with compatible wired and wireless headsets for hands-free communication.

Product Specifications

• Model: Grandstream GRP2612G
• Product Type: 4-line professional IP phone
• SIP Accounts: Up to 4 SIP accounts
• Lines: 4 lines
• Display: 2.4-inch color LCD (320 × 240 resolution)
• Audio: HD handset and HD speakerphone
• Conferencing: 5-way audio conferencing
• Network Ports: Dual 10/100/1000 Mbps Gigabit Ethernet ports
• PoE Support: Yes (integrated, model dependent configuration)
• Voice Codecs: Opus, G.722, G.711 A-law/U-law, G.729A/B, G.726, iLBC
• Device Management: Grandstream Device Management System (GDMS)
• Provisioning: Zero-touch provisioning, TR-069, XML configuration support
• Security: Secure boot, TLS, SRTP, HTTPS, encrypted storage, dual firmware images
• Phonebook Capacity: Up to 2,000 contacts
• Call Log Capacity: Up to 800 records
• QoS Support: 802.1Q, 802.1P, DiffServ
• Headset Port: RJ9 with EHS support
• Wall Mount Support: Yes
• Ideal Use Cases: Enterprise offices, call centers, reception desks, service providers, and high-traffic business communication environments