Product Description
Overview
The Grandstream GRP2603 Series is a sleek and reliable 3-line IP phone built for modern offices, service providers, and high-volume deployments. Designed with zero-touch provisioning and enterprise-grade security, the GRP2603 series delivers crystal-clear HD audio and intuitive call handling for everyday business communication.
Key Highlights
- Supports 3 lines and up to 6 SIP accounts
- 5-way audio conferencing for team collaboration
- Full-duplex HD speakerphone and handset
- AI Noise Shield technology to minimize background noise
- Zero-touch provisioning with Grandstream GDMS
- Swappable faceplate for easy logo customization
- Enterprise-grade security with encrypted data storage
Audio & Call Handling
- HD audio with wideband voice support
- Call hold, transfer, forward, park and pickup
- Shared Call Appearance (SCA/BLA)
- 5-way conferencing support
- Downloadable phonebook (XML / LDAP) up to 2000 contacts
- Call logs up to 800 records
Variants & Connectivity
| Model | Network & Power |
|---|---|
| GRP2603 | Dual Gigabit Ethernet, Power Adapter |
| GRP2603P | Dual Gigabit Ethernet with PoE (IEEE 802.3af) |
Display & Interface
- 2.7 inch backlit graphical LCD (132 × 64)
- 3 line keys with dual-color LED indicators
- 4 XML programmable context-sensitive soft keys
- 9 dedicated function keys including message, transfer, hold, headset, mute and speaker
- RJ9 headset port with EHS support for Plantronics, Jabra and Sennheiser
Security & Management
- Secure boot and dual firmware images
- Encrypted configuration and call data
- Supports TLS, SRTP, 802.1X and AES encryption
- Centralized provisioning via GDMS and TR-069
Physical Details
- Adjustable desk stand with two viewing angles
- Wall-mountable design (wall mount sold separately)
- Dimensions: 214 × 206 × 68 mm (with handset)
- Weight: approx. 780 g
Ideal For
- Corporate offices and enterprises
- Call centers and support desks
- Remote and hybrid work environments
- Large-scale VoIP deployments
Click here for Product Datasheet
Specifications based on the official Grandstream GRP2603 Series datasheet.