pdf_gross.gifAMR in GSM - Operation, Procedures & Testing

[2-day course, Euro 2,350.- (net) per participant]

backtotop.gifTraining Course Description

Course Description

  • This training course addresses the needs of engineers and technicians who are already experienced in GSM.
  • This training course focuses on all aspects of developing, testing and introducing AMR into an existing GSM network.
  • Starting with a generic description of the GSM speech coders (including the AMR-coders) the training course continues with the detailed analysis of the AMR-operation (setup, adaptation, …)
  • The training course also outlines in detail RATSCCH-signaling functions and the training course concludes with an in-depth description of the AMR-coding options for TCH/AFS and TCH/AHS.
  • We also focus on testing the AMR-functionality which is important for all involved parties.

As in all INACON training courses we integrated several interactive exercises for a perfect learning experience.
Please click here for a detailed Table of Contents (ToC)

Some of your questions that will be answered

  • How can I optimize the usage of the GSM Air-Interface capacity without degrading the speech quality?
  • What is the meaning of the various new parameters, logical channels and counters like: ACS, CMI, CMR, CMC, RATSCCH, convolutional coding, puncturing... ?
  • What is the meaning of the various new messages that have been defined for AMR?
  • How can I decode hexadecimal AMR inband signaling messages?
  • What is the impact of AMR introduction for TRAU, BTS and mobile station.
  • What are the effect of TFO, DTX, Handover,… on AMR?
  • How and where can we test AMR in the GSM-Network and mobile station?
  • Depends the function of AMR on the speaker’s language?

backtotop.gifWho should attend this class?

  • Design engineers who shall develop AMR for the BSS or for the mobile station.
  • Test engineers who need a thorough understanding of AMR-signaling procedures (inband and outband)
  • Network operators who require a detailed understanding of the technical realization and implications of AMR.


  • Very good understanding of GSM networks, protocols, operation and parameters. If required, we advise our training courses “Introduction to GSM” and “GSM-Signaling” to be taken upfront.

backtotop.gifTraining Course Target

  • The student will understand all relevant details of activating and managing AMR.
  • The student will gain a thorough comprehension of AMR in the mobile station, the BTS and the TRAU.
  • The students obtain the capability to implement AMR to their specific hard- and software platform.

backtotop.gifTraining Course Duration

  • 2 days