A SIP trunk is the digital version of an analog phone line. Learn how you can upgrade to a unified digital phone system for your business.

See which SIP trunk providers fit your 2026 voice setup, from fast deployment and transparent pricing to global coverage and PBX support. I’ve looked into just about every business phone system on the ...

Skype is diving deeper into the business phone market with a system that lets companies integrate their existing, open VOIP phone systems with Skype’s proprietary VOIP service. The new offering, ...

Cisco Systems Inc. last week announced a bevy of voice over IP (VOIP) products, continuing the efforts of vendors to get technologies supporting phone services over data networks in shape for more ...

Although many enterprises are eager to adopt SIP, they see their legacy PBX systems as a roadblock to the cost savings and enhanced applications that SIP would bring. This paper outlines how to ...

IP softphones provide the same handset capabilities in software installed on a PC, notebook, or sometimes even a PDA. In addition to phones and IP PBXes, an important component of VoIP systems is the ...

Linux-based VoIP box gives a glimpse into vendor’s IP PBX road map. Nortel next month is expected to launch the first in a family of Linux-based IP PBXs that ultimately could save customers money, ...