Cortel SIP

Carrier-grade dial-tone for all businesses

Cortel SIP lowers costs and simplifies connection to the public switched telephone network (PSTN) and enables us to build the most redundant and reliable dial-tone ever available to the public.

As low as $12.50/month

(per call path, including usage)


Cortel Nationwide

Inbound local numbers from nearly everywhere in the US

Cortel Rapid-Port

We can move your numbers within a couple days

Cortel SIP-Elastic

Instantly add and subtract numbers and call paths 

Cortel SipSearch

Calls instantaneously hunt for working IP addresses to complete calls

Working together