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SIP Trunk Provider

Combine voice and Internet

SIP Trunking Solutions

Call One’s SIP trunking solution leverages your existing enterprise IP network to deliver comprehensive SIP voice services. With Call One's solution, you can reach over 160 countries and 3,700 cities through a single SIP Trunk provider and ultimately achieve a truly mobile workforce. With just an Ethernet IP-based connection, employees can take their VoIP phones around the office or on the road, plug in, and connect practically anywhere.

What is SIP?

Session Initiation Protocol (SIP) is a signaling communications protocol that controls voice and video calls over Internet Protocol (IP) networks under the management of a dedicated SIP provider. By replacing your Public Switched Telephone Network (PSTN) connectivity with voice services delivered across an IP connection, SIP service provides significant network, equipment and voice cost savings; while maintaining a high quality of service and enhancing feature functionality and resiliency.

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Video Conferencing, HD Voice and data services such as email, text messaging and fax are all delivered across the same system and network. Our SIP trunking implementation does not require a forklift replacement of existing equipment; in many cases, existing voice equipment can be reused and integrated to maximize value.

While many SIP trunking providers offer basic connectivity services, the Call One solution includes a wide range of disaster recovery initiatives, including primary, secondary and tertiary options, at either the trunk or individual telephone number level. For trunks, redundancy is achieved by traffic failover to any of our nodes in North America, South America, Asia and Europe. Enterprises can elect failover options per telephone number route based on time of day, site availability, traffic flow and more. Our SIP service also provides deep visibility and control into traffic, via an optional, easy-to-use portal that allows you to route traffic anywhere in the world in the event of a number outage.

Benefits of SIP Trunking:

  • Cost Savings

    Reduce hardware costs by leveraging your existing legacy system equipment and the expertise of a SIP provider.
  • Scalability

    Scale you business communications in parallel with your increasing needs.
  • Recovery
SIP Trunking facilitates disaster recovery because the system resides off-premises. Calls are redirected easily to an unaffected location in the event of a number outage.

How We Can Help

Mobility and Recovery

Call One helps you evaluate SIP trunk providers and find the ideal fit for your industry and enterprise. Enjoy the benefits of mobility, recoverability and scalability in a single, cost-efficient service from the ideal SIP provider; we even help with contracts and billing. Contact Call One in Chicago, IL today and get your SIP solution started.

Get a SIP Trunking Solution