Business Class Voice-over-IP Telephone Service

With the iSIP 50K Minute Plan, you get 20 phone numbers and 50,000 minutes per month to make calls anywhere in the United States and Canada for the low price of $999.95 a month. Each additional minute is only 2.5 cents.

What is iSIP and VOIP?
iSIP is a complete phone line service delivered over your Internet or IP data line, which your business can utilize with your own SIP (Session Initiation Protocol) enabled VoIP (Voice over IP) equipment. Whether you have a traditional PBX or iPBX we are ready to implement the savings of iSIP! ISI certified resellers can provide you any needed hardware and/or installation. Sign up for iSIP Business Service and start saving today!

Connect your VoIP gateway to your PBX
iSIP VOIP fits into your existing PBX by using a Gateway provided by ISI Communications. We use only the top brands in the industry, providing the highest quality VOIP transmission to connect to your existing voice switch. Whether you have an ISDN PRI, or traditional POTS (Plain Old Telephone Service) lines, your business can start realizing the savings provided by iSIP VOIP.

Voice Tuned Back-bone Network
The iSIP service does not use the internet backbone to process your voice calls, our back-bone network carries only IP voice traffic. Our customers calls don??t get bogged down by heavy file transfers, and big downloads on our back-bone, our network is tuned to transmit voice traffic.

Utilize a new IP/PBX or IP phones
iSIP VOIP Service will accommodate any small/medium business environment with a direct replacement of traditional telephone service with less expensive, more flexible VOIP service. We will do all of the necessary implementation, and integration to your existing or new offices in a non-disruptive, seamless fashion. All you business needs is a data connection to the internet.

What Makes iSIP different from other telephone service providers?
iSIP delivers business class telephone service to you over your existing broadband or T1 internet connection. By eliminating local loop charges incurred by traditional providers our customers have seen their bills cut by as much as 40%.

Who uses iSIP?
Our customer base is made up of a diverse group of business owners and decision makers with one goal in mind. To save money without giving up quality or service. Any business seeking to cut costs or add diversity in service models can benefit by using our iSIP products.

Will iSIP work with my current phone system?
Absolutely! iSIP is a standards based product. Not only do we support software IP-PBX systems and soft trunk capable systems, but we can also provide you a turnkey solution for your existing key or PBX system so you can start reaping the benefits of VOIP technology today!

Is iSIP or Voice over IP more expensive than regular phone systems?
Absolutely not. In fact we find most businesses can see a VOIP telephone system pay for itself in under 2 years. You have many more options with a standards based system that are not available when using proprietary or legacy telephone systems.