3.6 Idle channel noise (handset and headset MS)

3GPP43.050Release 17Transmission planning aspects of the speech service in the GSM Public Land Mobile Network (PLMN) systemTS

3.6.1 Sending

The maximum noise level produced by the apparatus at the UPCMI under silent conditions in the sending direction shall be as specified in [49] 3GPP TS 26.131.

For a dual mode GSM/3GPP telephone compliance shall be checked according to the procedures described in [50] , 3GPP TS 26.132. For a single mode GSM MS conformance shall be checked according to the procedures described in [51] 3GPP TS 51.010.

3.6.2 Receiving

The maximum (acoustic) noise level at the handset and headset MS when no signal (O‑level) is received from the speech transcoder shall be as specified in [49] 3GPP TS 26.131.

For a dual mode GSM/3GPP telephone compliance shall be checked according to the procedures described in [50] , 3GPP TS 26.132.

For a single mode GSM MS conformance shall be checked according to the procedures described in [51] 3GPP TS 51.010.