Manual

Description 2.1
15
Telephone Line Tones – Operational Tones
The UMTS/GSM gateway sends tones to the telephone line to indicate the line status.
The tone frequency is 425 Hz in initial setting. Frequency is programmable; it is
possible to set up double frequency tones.
Dial tone
n continuous or morse A
n 2N® SmartGate UMTS is ready to receive dialing.
Ringing tone
n Only
n The called subscriber's telephone is ringing.
n The UMTS/GSM network or connected PBX transmits this tone. For connection
to UMTS/GSM network is possible to generate this tone in Gateway according
to setting. This tone is generated till the UMTS/GSM network starts to
transmit Ringback tone.
Busy tone
n , programmable cadency
In case of call routing to UMTS/GSM network 2N® SmartGate UMTS generate busy
tone in any of the following cases:
n The SIM card has not been installed.
n 2N® SmartGate UMTS is not registered to UMTS/GSM network.
n 2N® SmartGate UMTS is registered into a foreign network but roaming is
disabled.
n The called subscriber line is busy.
n The called subscriber hangs up (disconnection).
n The called number has too many digits (more than 30).
n The called number is barred.
In case of call routing to SmartGate UMTS’s FXO interface 2N® SmartGate UMTS
generate busy tone in any of the following cases:
n Line is not connected. There is no current on the line.
n The called number has too many digits (more than 30).
n The called number is barred.
n If the called subscriber line is busy or called subscriber hangs up, busy tone is
generated by PBX.