IP PBX Solutions – CloudUCM Product Description CloudUCMCloud PBX solution that support up to 200 users and 64 concurrent calls Built-in Session Border Controller (SBC) Hosted on AWS Compatible with the Wave App, GDMS, and UCMRC Visit cloud.grandstream.com/clouducm for more and to sign up See also different: Facility Access Systems – GDS3705 DECT Cordless IP Phones – DP735 DECT Cordless IP Phones – DP720/DP722/DP730 GXP Series IP Phones – GXP2130 v2