Featured Technology

As telecom service providers increasingly transition their circuit-switched transmission networks to a packet switched infrastructure to cater to an exponential growth in high-speed data services, the problem of efficiently supporting residual TDM services continues to be a challenge. Circuit Emulation technology enables such telecom operators to translate TDM signals such as E1/DS1, E3/DS3, STM-n/OC-n to appropriate packet formats and carry them on a modern packet transport network. An efficient implementation of circuit emulation requires the following:

  • a. Maintaining accurate synchronization information for incoming TDM circuits
  • b. Stringent latency, jitter and wander performance end-to-end for reliable transmission
  • c. Sub-50ms protection switching in the case of voice and other mission-critical services
  • d. Real-time performance monitoring and fault management capabilities such as service loopbacks
  • e. Scalability to emulate thousands of low-speed circuits for large-scale carrier networks that continue to support TDM interfaces at the customer end for business reasons
The above requirements can only be achieved by guaranteeing adequate bandwidth, prioritization and buffering along the end-to-end path to minimize packet losses, delays or reordering.
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