Introduction
This section of the notes covers the procedures involved in establishing a call connection
between subscribers and the routing of the associated traffic. This section also includes an
overview of the requirements for echo cancelling.
An MS can participate in one of two types of calls:
Mobile Terminated Call. This is a call received by an MS that has been originated either from
another MS (internal or external to the PLMN) or from a fixed network (e.g. PSTN)
subscriber.
Mobile Originated Call. This is call originated by an MS within a PLMN.
between subscribers and the routing of the associated traffic. This section also includes an
overview of the requirements for echo cancelling.
An MS can participate in one of two types of calls:
Mobile Terminated Call. This is a call received by an MS that has been originated either from
another MS (internal or external to the PLMN) or from a fixed network (e.g. PSTN)
subscriber.
Mobile Originated Call. This is call originated by an MS within a PLMN.
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