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ATA Voice Field Reference
PSTN Line page (SPA3102)
ATA Administration Guide 206
B
VoIP DLG Refresh
Intvl
Interval between (SIP) Dialog refresh messages sent by
the SPA to detect if the VoIP call-leg is still up. If value is set
to 0, SPA will not send refresh messages and VoIP call-leg
status is not checked by the SPA. The refresh message is a
SIP ReINVITE and the VoIP peer must response with a 2xx
response. If VoIP peer does not reply or response is not
greater than 2xx, the SPA will disconnect both PSTN and
VoIP call legs automatically. The range is 0-255.
The default is 30.
PSTN Ring Thru
Delay
Delay in seconds before starting to ring thru Line 1 after the
PSTN starts ringing. In order for Line 1 to have the caller-id
information, the delay should be set to larger than the delay
required to complete the PSTN caller-id delivery (such as
5s). The range is 0-255.
The default is 5.
PSTN-To-VoIP Call
Max Dur
Limit on the duration of a PSTN-To-VoIP Gateway Call. Unit
is in seconds. 0 means unlimited. The range is 0-
2147483647.
The default is 0.
VoIP-To-PSTN Call
Max Dur
Limit on the duration of a VoIP-To-PSTN Gateway Call. Unit
is in seconds. 0 means unlimited. The range is 0-
2147483647.
The default is 0.
PSTN Dialing Delay Delay after hook before the SPA dials a PSTN number. The
range is 0-255.
The default is 1.
PSTN Ring Timeout Delay after a ring burst before the SPA decides that PSTN
ring has ceased. The range is 0-255.
The default is 5.
PSTN Dial Digit Len Determines the on/off time when transmitting digits
through the FXO port. The syntax is on-time/off-time,
where on-time and off-time are expressed in seconds with
up to two decimal places, within the permitted range,
which is from .05 to 3.00.
The default is .1/.1. If this value is blank, the default is used.