SIP Trunking Services and Cloud Telephony You Can Trust

SIP trunking is a service that delivers voice and unified communication over the internet to a SIP enabled PBX. It replaces traditional phone lines and PRIs with virtual SIP channels that carry voice traffic as data packets. Businesses use it to cut telecom costs, scale call capacity on demand, and connect cloud apps to the public phone network.

SIP trunking works by establishing a virtual connection between your IP PBX and a SIP provider through the SIP protocol. The protocol handles call setup, signaling, and teardown. Voice itself travels as RTP packets over the internet. Your PBX routes calls through the SIP trunk instead of through copper lines, which gives you global reach without physical hardware.

A SIP line, also called a SIP channel, is a single concurrent call path on a SIP trunk. If you need to handle ten simultaneous calls, you need ten SIP lines. Most providers charge per channel or per minute. With our model, you only pay for what you use, with no per channel locking.

VoIP is the broader category. Any voice call made over the internet is VoIP. SIP is the protocol most VoIP services use to set up and manage calls. SIP trunking is the specific service that connects your IP PBX to the public phone network using SIP. So SIP trunking is a type of VoIP, but not all VoIP is SIP trunking.

SIP termination is the routing of outbound calls from your SIP trunk to the public phone network. Termination providers connect your call to landlines and mobile networks worldwide. SIP origination is the reverse, handling inbound calls from the phone network to your SIP trunk. We provide both as part of every SIP trunk service.

Yes. Our SIP trunks integrate with Asterisk, FreePBX, 3CX, Avaya, Cisco, Microsoft Teams, and most modern IP PBX systems. We provide the SIP trunk credentials, codec configuration, and routing setup so your existing PBX gets global calling without replacing it.

Yes. Our SIP trunks are designed for global connectivity with Tier 1 carrier routing across the USA, Europe, the Middle East, and Asia. International calls run reliably and cost effectively compared to traditional long distance billing.

Yes. We integrate SIP trunking with major CRMs including Salesforce, HubSpot, Zoho, and Microsoft Dynamics to automate call logging, screen pops, click to call, and customer data syncing on every conversation.

Yes. SIP trunking eliminates expensive physical lines, PRIs, and long distance billing. Most businesses cut telecom costs by 30 to 60 percent after switching. You only pay for active channels or minutes used instead of fixed analog line bundles.

SIP is the signaling protocol. VoIP is the broader service of voice over the internet. SIP handles how calls get set up, modified, and ended. VoIP is what actually happens during the call, which is voice transmitted as data. Almost every modern VoIP service uses SIP underneath, but the two terms describe different layers of the same system.