||Calling Line Identity. The feature of showing the calling party’s number on the receiving party’s handset.
||Dual Tone Multi Frequency. Signal created when pressing touch keys on a handset during a phone call.
||Definition of how the media, in this case audio, is compressed.
||Public Switched Telephone Network. The aggregate of all fixed and mobile networks that allows any telephone in the world to communicate with any other telephone.
||Real-time Transport Protocol. Standardized packet format for delivering media such as voice and video over the internet.
||Session Initiation Protocol. Industry standard protocol for controlling media communication sessions such as voice and video calls over the internet.