What Is SIP Trunking?

Session Initiation Protocol (SIP) is how your organization can support voice over IP (VoIP) calling. It’s a protocol for real-time audio sessions between two endpoints (phones). Those sessions could be one-to-one calls or one-to-many conference calling. SIP trunking is the technology behind connecting IP based communications infrastructure to the Public Switched Telephone Network (PSTN).

Mobile phone endpoint with SIP trunk connection to the internet. SIP trunk connects to internet. SIP trunk connects from internet to CarrierX application. CarrierX application connects to the PSTN. Connection extends to endpoint which can be any phone, anywhere.

The Benefits of SIP Trunking

A SIP trunk solution is the best way to connect your organization's IP-PBX and the PSTN. It feels just like an analog phone line, but uses a SIP connection provisioned from a SIP trunk provider. SIP trunking is virtual, not physical. That makes SIP trunking significantly less expensive than traditional PBX phone systems — and much easier to scale.

Cost

LOWER COST

Pay only for the minutes you need and skip the analog infrastructure costs.

Configuration

EASY CONFIGURATION

SIP trunking makes it easier to configure, deploy and manage your network.

Network signal

SIMPLIFIED GROWTH

Instantly scale with SIP trunking when voice demands increase —regardless of location.

Voice and data

UNIFIED COMMUNICATIONS

SIP trunking supports all your voice demands central to UC functionality.

CarrierX SIP Trunking Solutions

If you're looking for SIP trunking and SIP termination, CarrierX has the solution you need. Enable your own applications with voice or use CarrierX applications for conferencing, two-stage dialing and programmable voice.

Network signal

NETWORK CONTROL

CarrierX has an extensive proprietary network that supports the world's largest brands.

Customization

CUSTOMIZATION

Create a SIP trunk directly to your application or route to CarrierX applications.

Cost

DISRUPTIVE PRICING

CarrierX delivers enterprise-grade quality of service (QoS) at industry-low rates.