Microsoft Teams Direct Routing for GCC High

Enabling GCC High with Conferencing and PSTN via Microsoft Teams Direct Routing


CallTower is the only proven voice provider delivering cloud-based Direct Routing in GCC High since 2019 to support Microsoft GCC High ( GCCH) for government contractors that work with the Department of Defense.



Microsoft  GCC High (GCCH) meets the unique and evolving requirements of contractors holding or processing DoD-controlled unclassified information (CUI), Cybersecurity Maturity Model Certification (CMMC),  or subject to International Traffic in Arms Regulations (ITAR).

Now, organizations leveraging Microsoft GCC High environments can add voice and audio conferencing to their systems with Microsoft Teams Direct Routing from CallTower. Chats and team calls are now easier as users can directly communicate with others who are not a part of the same workplace. 

CallTower enables Microsoft Teams Direct Routing voice capabilities within MSFT GCC High. CallTower’s voice-optimized network provides the service, manages the network upgrades and integrates the technology and applications with around-the-clock monitoring by our Network Operations Centers. By offering redundant connections through leading providers, CallTower can connect to almost any place at any time. CallTower also provides dedicated lines and global Session Initiated Protocol (SIP) Trunking all with 24x7x365 monitored services to ensure maximum uptime and available dynamic application failover.


Schedule Your Consultation Today