Clearfly Communications SIP Trunking
  1740 West Sam Houston Pkwy N., Houston, TX 77043
(281) 497-8181
  (713) 849-3344


What exactly is SIP?

A SIP trunk is a Voice over IP (VoIP) connection that uses SIP to connect telephony equipment (e.g., PBXes) to the publicly switched telephone network (PSTN). SIP trunks ride over a broadband data connection and can be over-the-top, meaning companies can buy SIP trunks and broadband services from different providers or can be part of a bundled voice/data offering so providers can tweak the pipe to ensure consistent quality of service.

Is the service reliable enough for my business?

Voice over IP and SIP have evolved over the course of the last 10 years to the point that they have become a viable substitute for traditional business voice services. In fact, the vast majority of Fortune 1000 companies have been using this technology for nearly 10 years. Millions of smaller businesses have also transitioned to SIP in the last 2-3 years.

Since SIP Trunks utilize your existing broadband connection (whether it's cable, DSL or T1), the quality and reliability of the service are dependent upon the quality and the reliability of your broadband connection. Not all broadband connections are the same. Clearfly sets some minimum requirements in order for a customer to qualify for the service and provides you with an easy-to-use tool (available here) to assess whether or not your broadband connection meets these quality requirements.

Assuming your broadband's reliability and quality meet the requirements, you can determine how much bandwidth your SIP trunks will require here.

What types/brands/makes of PBX are supported?

Clearphone UBT interfaces with the vast majority of existing business phone systems, whether they rely on traditional analog or TDM interfaces or are capable of supporting direct SIP connectivity.

  • Save up to 50% in monthly voice and data costs over traditional solutions
  • Speed up ROI by leveraging your telcom investment
  • Eliminate long-distance charges
  • Scales to fit your company size today and tomorrow

Clearfly cFax Documentation and FAQ

                         Fax-to-Email User Guide

                         Fax ATA Quick Start Guide

Please click below on the other products we offer, if you have a moment.

Sound Masking sound masking is a popular acoustic technology that makes an office more comfortable and private by reducing noise distractions.

CommSoft RMS for call recording needs.

Iwatsu discontinued but we can help support this system while you plan your next solution.

Panasonic phone systems, security cameras and ideas for life.

Speco Technologies security cameras for onsite storage or Cloud off-premise solutions.

Structured Cabling for all your data, voice, audio/video and low voltage cabling needs

SIP Trunking to help lower your monthly phone bills while providing free long distance.


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