Multiple header fields in a SIP packet are required to be valid URIs, and are expected to be SIP URIs — something like sip:[email protected].

As part of VoIP threats series, I’d like to introduce Malformed Messages (or Protocol Fuzzing). An attacker may create and send malformed messages to the target server or client for the purpose ...

REPLAY VoIP creates Call Detail records from SIP headers. This call control information is recorded for all calls accessible to the recording PC. The voice recordings are constructed from RTP packets, ...

It is complemented by a rich set of supporting features including border element flow control, highly flexible SIP header based routing and Guaranteed Caller STIR/SHAKEN (ATIS 1000082) interfacing.

US-designed and manufactured, Patton's new commercial SIP-Phone is ultra-secure, FIPS 140-2 validated, and NG911-enabled. Providing POE and Fiber-to-the-Desk, the Tone Commander TC7110 delivers ...