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Configuring the PSTN (FXO) Gateway on the SPA3102
Call Scenarios
ATA Administration Guide 105
6
Call Progress Tones
The ATA has configurable call progress tones. Call progress tones are generated
locally on the ATA, so an end user is advised of status (such as ringback).
Parameters for each type of tone (for instance a dial tone played back to an end
user) may include:
• number of frequency components
• frequency and amplitude of each component
• cadence information.
When one VoIP account is shared between the FXS and PSTN Lines, the following
parameters are recommended to be set. See the Regional page in the “ATA Voice
Field Reference,” on page121 for these and other call progress tone parameters.
Call Scenarios
This section describes some typical scenarios where the ATA device can be
applied. Some terms are introduced in the first few sections and reused in later
sections. This section includes the following topics:
• ”PSTN to VoIP Call with and Without Ring-Thru” section on page106
• ”VoIP to PSTN Call With and Without Authentication” section on page106
• ”Call Forwarding to PSTN Gateway” section on page109
Call Progress Tone Description
VoIP PIN Tone This tone is played to prompt a VoIP caller to enter a PIN number.
PSTN PIN Tone This tone is played to prompt a PSTN caller to enter a PIN
number.
Outside Dial Tone During two-stage PSTN-gateway dialing and with a dial plan
assigned, the ATA device collects digits from the VoIP caller and
processes the number using the dial plan. The ATA device plays
the
Outside Dial Tone
to prompt the VoIP caller to enter the
PSTN number. This tone should be specified to sound different
from the PSTN dial tone.