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.

Cisco SIP based phones have SIP extensions that use the SIP protocol for Cisco proprietary operations like registering a Cisco SIP phone by MAC Address. This blog will take a high level look at ...

An organization that provides voice over IP (VoIP) service and enables calling from SIP phones to plain-old-telephone (POTS) lines and vice versa. SIP is the universal protocol used for Internet ...

Session initiation protocol (SIP) trunking is an increasingly popular way for small businesses to minimize their phone costs and improve their telecommunication bandwidth, but it can be a difficult ...

An interesting discussion on the Broadband forum of DSLReports.com documents how to reach a Google Voice number via a SIP phone. “this is a direct connection, without going through Gizmo or any other ...

We know SIP can change telephony but are you willing to change with it? For several years we've heard that SIP as a powerful tool can change what we can do with business telephony. We know SIP can ...

Most people communicating on the internet are using SIP calling. Here’s how to make free SIP calls — and when you shouldn’t. Session Initiation Protocol (SIP) allows one device to find another and ...

The most reliable internet protocol (IP) desk phone is Polycom VVX because its hardware is crafted to an extremely high standard, and its user base appears to be consistently satisfied with its ...

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 ...