Microsoft UC SIP Trunk Services

Sip Trunk Services

Microsoft Calling Services or ATGN SIP Trunks

Our integrated SIP Trunk service provides our customers with global enterprise grade VoIP services optimized for our Unified Communications solutions. Leveraging state-of-the-art intelligent call routing and  interconnecting with global Tier 1 carriers, our SIP Trunks deliver high quality voice calls at highly competitive rates.

Our online portal simplifies the process of porting your existing telephone numbers, selecting new DID and toll free numbers, and managing your monthly bill.