Voice over Asynchronous Transfer Mode (VoATM) is a data protocol used to transport packetized voice signals over an

Asynchronous Transfer Mode Asynchronous Transfer Mode (ATM) is a telecommunications standard defined by American National Standards Institute (ANSI) and ITU-T (formerly CCITT) for digital transmission of multiple types of traffic. ATM was developed to meet the needs of ...

(ATM) network.Tamara Dean. ''Network+ Guide to Networks''. Course Technology, Cengage Learning, 2010, p. 533. In ATM, the voice traffic is encapsulated using AAL1/AAL2 ATM packets.

VoATM over DSL Voice over Asynchronous Transfer Mode (VoATM) is a data protocol used to transport packetized voice signals over an Asynchronous Transfer Mode (ATM) network.Tamara Dean. ''Network+ Guide to Networks''. Course Technology, Cenage Learning, 2010, p. 5 ...

is a similar service, which is used to carry packetized voice signals over a

DSL Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric dig ...

connection.

Protocols

* ATM Adaptation Layer 1 (AAL1) *

ATM Adaptation Layer 2 ATM Adaptation Layer 2 (AAL2) is an Asynchronous Transfer Mode (ATM) adaptation layer, used primarily in telecommunications; for example, it is used for the Iu interfaces in the Universal Mobile Telecommunications System, and is also used for tran ...

(AAL2)

Deployment

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

developer.com, November 24, 2003, accessed April 26, 2011.

Prioritization

Prioritization is implemented through Quality of service, QoS parameters.

Fragmentation

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

accessed April 26, 2011

Variable delay

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.

Echo cancellation

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

echo cancellation Echo suppression and echo cancellation are methods used in telephony to improve voice quality by preventing echo from being created or removing it after it is already present. In addition to improving subjective audio quality, echo suppression ...

is employed.

References

{{Reflist Broadband Videotelephony Audio network protocols