SigmaVoIP provides VoIP services exclusively to Business customers. We offer nationwide coverage and phone number availability worldwide.

SIP Trunk Service
Full-featured phone service with unlimited channels, HD voice quality, T38 and G711u Fax support, automated disaster re-routing, unlimited channels, and much more.

Onsite IP PBX
We provide a wide selection of onsite IP PBX platforms, ranging from software only to appliance solutions. From needs assessment to deployment and training, we make the transition seamless and problem-free.

Hybrid Cloud IP PBX
Merging the best features of Cloud-based and On-Site IP PBX Solutions, our Hybrid platform provides your business with the highest level of dependability, resilience, and uptime.

If you still have a traditional phone system (POTS or PRI) or fax lines, we can bring the flexibility and savings of VOIP to you in a simple to self-install device. From 1 to 4 PRI and from 1 to 48 POTS (traditional two wire line) we can easily transition your system to VoIP.

VoIP (Voice over Internet Protocol) and traditional voice lines are two distinct technologies used for voice communication. Here’s a comparison between the two:

  1. Cost: VoIP is generally more cost-effective than traditional voice lines. With VoIP, there is no need for dedicated telephone lines, and calls can be made from any device with an internet connection. Additionally, there are no long-distance charges as calls are made over the Internet, which eliminates the need for costly international calling plans. On the other hand, traditional voice lines can be more expensive, especially for long-distance and international calls.
  2. Quality: The quality of VoIP calls has improved significantly in recent years, with high-speed Internet connections and advances in VoIP technology. However, traditional voice lines still provide a higher quality of voice communication, as the signal is transmitted over dedicated lines specifically designed for voice transmission.
  3. Features: VoIP offers a range of advanced features such as call forwarding, voicemail, call conferencing, and video calling that are not available with traditional telephone systems. Additionally, VoIP integrates with other business communication tools such as instant messaging and screen sharing, providing a more streamlined communication experience. Traditional voice lines typically offer basic features such as call waiting and caller ID.
  4. Reliability: VoIP uses data networks that are designed to be highly reliable, with built-in redundancy and failover mechanisms. This results in a more reliable and stable communication service. However, traditional voice lines are still more reliable, as they are not dependent on Internet connectivity.
  5. Flexibility: VoIP is highly flexible and can be used from any device with an internet connection, including smartphones, laptops, and desktop computers. This allows for increased mobility and remote work capabilities. Traditional voice lines are typically limited to landline telephones, making them less flexible.