VoATM
VoATM (Voice over Asynchronous Transfer Mode) is a service used to transport packetized voice signals over an ATM network.[1] The voice traffic is encapsulated using AAL1/AAL2 ATM packets, when sending voice traffic over ATM.[2] VoATM over DSL is a similar service, which is used to carry packetized voice signals over a DSL connection.[1]
Contents |
Protocols [edit]
Deployment [edit]
VoATM is a multi-service, high speed, scalable technology but rarely found because of its expensive services.[3]
Prioritization [edit]
Prioritization is implemented through QoS parameters.[3]
Fragmentation [edit]
Fragmentation is built into ATM with its small, fixed-sized, 53-byte cells.[3][4]
Variable Delay [edit]
Dynamic Bandwidth Circuit Emulation Service (DBCES) does not send a constant bit stream of cells but transmit only at an active voice call, reducing delays and variations.[3]
Echo Cancellation [edit]
VoATM transports data, voice, and video at very high speed. The same method for echo cancellation is employed.[3]
See also [edit]
Professional wide band audio over ATM. Audio Engineering Society AES47
