Grandstream GRP2615 IP Phone

Premium Design & Large Color Display

The GRP2615 features a sleek and modern executive-style design with a large 4.3-inch TFT color LCD display offering a 480 × 272 resolution. The vibrant display provides a user-friendly interface for handling calls, contacts, BLF monitoring, voicemail access, and telephony applications. The device also includes swappable faceplates, allowing organizations and service providers to customize the phone with company branding or logos for a more professional deployment.

Multi-Line & SIP Account Support

Designed for demanding office environments, the GRP2615 supports up to 10 line keys and 16 SIP accounts, enabling users to efficiently manage multiple calls and extensions simultaneously. It also includes 40 built-in digital multi-purpose keys (MPKs/BLF keys) that support extension monitoring, speed dialing, and busy lamp field functionality, making it especially suitable for receptionists, operators, and customer support teams.

Exceptional HD Audio Performance

The GRP2615 delivers HD voice quality on both the handset and full-duplex speakerphone with support for wideband audio codecs including Opus and G.722. Advanced acoustic technologies such as echo cancellation, automatic gain control, packet loss concealment, and noise reduction help ensure clear and natural conversations even in busy office environments. Some newer firmware and hardware versions also include Noise Shield Technology to reduce background noise further.

Integrated Wi-Fi & Bluetooth

The phone includes integrated dual-band Wi-Fi support for both 2.4GHz and 5GHz wireless networks, allowing flexible deployment without requiring additional adapters. Hardware version 5.0 and above additionally support Wi-Fi 6 for improved wireless performance and efficiency. Integrated Bluetooth connectivity enables users to pair wireless headsets and compatible devices for convenient hands-free communication and improved mobility.

Gigabit Networking & PoE

The GRP2615 is equipped with dual auto-sensing Gigabit Ethernet ports with integrated PoE (Power over Ethernet). This ensures fast and stable network connectivity while simplifying installation by reducing cable clutter and eliminating the need for separate power adapters in many deployments.

Expansion Module Support

For businesses that require advanced extension monitoring and receptionist functionality, the GRP2615 supports Grandstream GBX20 expansion modules. Each expansion module adds 40 additional BLF/speed-dial keys, and the phone can support up to four GBX20 modules, enabling access to up to 160 additional contacts and extensions. This makes the GRP2615 highly suitable for switchboard operations and large-scale call management environments.

Advanced Telephony Features

The GRP2615 includes a comprehensive set of enterprise telephony features designed to improve communication efficiency, including:

• Call hold, transfer, and forwarding
• Call park and pickup
• Shared Line Appearance (SLA/BLA)
• 3-way audio conferencing
• XML and LDAP phonebooks
• Flexible dial plans
• Hot desking support
• Auto answer and auto dial
• Click-to-dial functionality
• Customizable ringtones and music on hold
• Server redundancy and failover support

These features help improve workflow efficiency and collaboration in professional business environments.

Enterprise-Grade Security

Security is a major strength of the GRP2615. The device includes secure boot technology, dual firmware images, encrypted data storage, TLS and SRTP encryption, 802.1X authentication, and advanced authentication protocols. These enterprise-level security features help protect sensitive communications and support secure large-scale deployments.

Centralized Cloud Management

The GRP2615 is fully supported by Grandstream Device Management System (GDMS), Grandstream’s cloud-based provisioning and management platform. GDMS enables IT administrators and service providers to remotely configure, provision, monitor, troubleshoot, and update large numbers of devices through a centralized interface, significantly simplifying enterprise and multi-site deployments.

Headset & USB Support

The phone supports multiple headset connectivity options, including Bluetooth wireless headsets, RJ9 wired headsets, and EHS compatibility with Plantronics headsets. USB support is also available for compatible accessories and expansion functionality, improving flexibility for professionals who rely on hands-free communication throughout the workday.

Compatibility

The GRP2615 supports standard SIP protocols and integrates with major IP PBX and unified communication platforms including:

• Asterisk
• 3CX
• BroadSoft
• Metaswitch
• Elastix
• Grandstream UCM platforms

Its broad SIP interoperability makes it suitable for a wide variety of enterprise VoIP deployments.

Ideal Use Cases

The GRP2615 is ideal for:

• Enterprise offices
• Reception desks
• Executive workspaces
• Customer support teams
• Call centers
• Unified communication environments
• High-call-volume business operations