VoATM

Voice over Asynchronous Transfer Mode is a data protocol used to transport packetized voice signals over an Asynchronous [Transfer Mode] network. In ATM, the voice traffic is encapsulated using AAL1/AAL2 ATM packets. VoATM over DSL is a similar service, which is used to carry packetized voice signals over a DSL connection.

Protocols

VoATM is a multi-service, high speed, scalable technology but rarely found because of its expensive services.

Prioritization is implemented through QoS parameters.

Fragmentation is built into ATM with its small, fixed-sized, 53-byte cells.

Dynamic Bandwidth Circuit Emulation Service does not send a constant bit stream of cells but transmit only at an active voice call, reducing delays and variations.

VoATM transports data, voice, and video at very high speed. The same method for echo cancellation is employed.