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 ...

Cisco Systems Inc.’s update to its CallManager IP PBX — introduced this week with native Session Initiation Protocol (SIP) support — will require broader ...

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 move is designed to strengthen Cisco's VoIP solutions aimed at the broadband communications market, enabling service providers to build "subscriber aware" networks capable of delivering the next ...

Cisco has issued a range of security advisories giving details of 11 vulnerabilities in IOS, the operating system on which many of its products run. One of the vulnerabilities, described as "highly ...

I've never needed to do this with a network that had an ASA, but have done it with a Sonicwall. When setting up a FreePBX server behind a Sonicwall I needed to do the following: - Turn on Consistent ...