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Voice Feature Guide 01

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Introduction to the R2 Feature

Introduction to the R2 Feature

Definition

R2 signaling is a type of channel associated signaling (CAS) and it is also the international standard signaling based on E1 digital networks. Timeslot 16 in the R2 signaling is reserved for transmitting the signaling of the voice channel.

Actually, there is no agreed standard for R2 signaling. ITU-T Recommendation Q.400-Q.490 define the R2 signaling standards but different countries and regions have developed their own standards.

Purpose

The MA5600T/MA5603T/MA5608T connects an R2 PBX to the next generation network, achieving transformation of the public switched telephone network (PSTN) to the NGN.

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Updated: 2019-02-22

Document ID: EDOC1100067358

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