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 ...

New features in Cisco’s CallManager software promise to make the IP PBX platform more secure and interoperable with standards-based VoIP equipment, while adding native support for video phone calls, ...

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.

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 ...

Popular Telephony have announced the Beta release of the PeerioBiz 1.1, a serverless enterprise communication platform that comes with business level PBX features and multi-lingual Instant Messaging ...

Security vulnerabilities in Mitel's SIP phones potentially jeopardize networks. In particular, IT managers should quickly rectify a vulnerability classified as a critical risk. Mitel is providing ...

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 ...