SIP Trunking — Enterprise Voice
GTT SIP Trunking delivers enterprise-grade PSTN connectivity over GTT's global Tier 1 network — replacing legacy PRI circuits with cloud-delivered SIP trunks. Supports inbound and outbound calling, DID numbers, E911, number porting, and integration with on-premise or cloud-hosted PBX systems. For multinational enterprises, GTT SIP Trunking provides in-country PSTN access across GTT's global footprint as part of a consolidated WAN and voice contract.
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About SIP Trunking from GTT
- GTT SIP Trunking delivers enterprise-grade PSTN connectivity over GTT's global Tier 1 network — replacing legacy PRI circuits with cloud-delivered SIP trunks.
- Supports inbound and outbound calling, DID numbers, E911, number porting, and integration with on-premise or cloud-hosted PBX systems.
- For multinational enterprises, GTT SIP Trunking provides in-country PSTN access across GTT's global footprint as part of a consolidated WAN and voice contract.
Fibi sources SIP Trunking from GTT alongside 300+ providers — comparing pricing, SLAs, and contract terms so you always get the best deal, at no cost to you.
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