Grandstream Networks latest GRP26xx Series Carrier Grade IP Phones are now compatible with the latest release of 3CX version 16 update 4. You can find more information about this announcement and how to provision your GRP series IP Phones with 3CX below.

The new GRP series are designed for service providers and enterprise users who need elegant, high quality, and secure phones that are easily manageable and customisable. Some of the key features of the GRP Series IP Phones include:

  • Color LCD screen with swappable faceplate for easy logo customisation
  • Zero provisioning and easy management through Grandstream’s new cloud platform, GDMS (Grandstream Device Management System)
  • Industry leading security protection such as secure boot, random default password, unique security certificate per device, and encrypted data storage
  • Support for all major voice codecs including wide-band Opus, G.722, G.711, G.729A/B, G.723, iLBC, G.726, etc. and multi-party conferencing
  • Dual firmware images for improved reliability
  • Unified firmware across all GRP2600 series models


3CX Supported Hardware list:

How to configure Grandstream GRP26xx Series for 3CX: