Carrier-Grade IP Phones in Dubai UAE. Grandstream GRP2600 series are carrier-grade and built for widespread use. This new generation of Grandstream IP phones available in Dubai has a robust feature set, a unified firmware, a sleek new design, and a reinvented user experience. Grandstream’s Device Management System (GDMS), which offers a centralized interface to configure, provision, manage, and monitor deployments of Grandstream endpoints, supports the series for cloud provisioning and centralized management. The GRP series provides a potent, user-friendly, and quickly deployable voice platform with next-generation features that is intended for businesses, service providers, and other high-volume industries.