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 ...

Switzerland-based O-FONE (not to be confused with Microsoft’s oPhone) has released a SIP VoIP client for Symbian’s S60 platform. Perhaps more interesting than the client itself is their claim that ...

I saw some high-end, feature-rich, browser-directable SIP phones at Supercomm last week, those exploiting the favored Session Initiation Protocol for VOIP. They all made use of presence awareness, and ...

The K-1900-712L-IP vandal resistant VoIP SIP panel phone is equipped with a short 12-inch armored handset cable to reduce the risk of users harming themselves, their surroundings, or the phone itself.

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 ...

SIP trunking is a cost-effective option for modernizing legacy phone systems with minimal disruption. Discover the best SIP trunking providers and how to choose one in our complete buyer’s guide. I’ve ...

Since September, CommWeb has been running interactive threaded messaging forums on CT topics every month. Recently our Roundtable titled “From PBX to IP Communications Appliances – Separating Myth ...

Cisco on Wednesday delivered patches to plug multiple overflow and denial of service vulnerabilities. In an advisory Cisco said multiple IP phone devices running the Skinny Client Control Protocol ...