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 ...

SIP trunking is a type of protocol used for VoIP, although the relationship between the two has often been confused. In this article, we’ll take a close look at what exactly SIP is, what SIP trunks ...

Why you can trust TechRadar We spend hours testing every product or service we review, so you can be sure you're buying the best. Find out more about how we test. Yealink was established in 2001 in ...

Today as expected, Cisco announced they have finally embraced SIP (Session Initiation Protocol). The platform for doing so will be Cisco Unified CallManager5.0, the call-processing component of the ...

I've ran into a strange problem at one of my clients. They use shortlesky cloud IP telephony service and use Cisco 7960 IP phones. The configuration is done through IP SLA tracking. The phones do work ...

When looking for ways to save in a medium-sized business–or larger–consider your phone infrastructure. Would a more-nimble SIP-based service trump your traditional setup with VoIP calls? SIP hardware ...

Who wants a phone that bears a striking resemblance to an oversized iPod? Well, a lot of people, apparently -- if the phone's functionality can back up its looks. Capitalising on the latest trend of ...