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 ...

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 ...

Phase 0 testing: Run tests on phones as configured on one PBX: Asterisk. This is to validate basic “phone is not broken” behavior. Phase 1 testing: Move phones to the PBXs as assigned. Make calls, ...

The promise of SIP has always been interoperability, and the three SIP-based phone systems we reviewed demonstrate why real standards are important. The interoperability part of the equation works, ...

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, ...

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 ...

Aiming to let enterprises do more with their IP (Internet Protocol) telephony systems and keep them available when a network goes down, Avaya introduced new software, phones, and a gateway at this ...

“They never buy, if they don't like the phones.” This is old news to telecom resellers – a lesson newly-converged data types, now selling their first PBXs, are fast learning. No matter how much sexy ...

VoIP phones offer the familiar look of a conventional desk phone with similar functionality, but aren’t as plug-and-go. Like so much networking kit, setting up a VoIP phone can be a very frustrating ...