Cisco SPA1112 Provisioning Manual page 125

Voice Parameters
<PSTN_Ring_Thru_Delay_3_>
<VoIP-To-PSTN_Call_Max_Dur_3_>
<PSTN_Ring_Thru_CWT_Delay_3_>
<VoIP_DLG_Refresh_Intvl_3_>
<PSTN_Ring_Timeout_3_>
<PSTN_Dialing_Delay_3_>
<PSTN_Dial_Digit_Len_3_>
<PSTN_Hook_Flash_Len_3_>
Provisioning Guide for Cisco SPA100 and SPA200 Series Analog Telephone Adapters
After a PSTN call starts ringing, the number of seconds to wait
before ring through to Line 1. In order for Line 1 to have the
caller ID information, this value must be greater than the time
required to complete the PSTN caller ID delivery. The range is
0-255.
Default setting: 1
The limit on the duration of a VoIP-To-PSTN Gateway Call. Unit
is in seconds. 0 means unlimited. The range is 0-2147483647.
Default setting: 0
When a call is active and a new PSTN call starts ringing, the
number of seconds to wait before ring through to Line 1 with a
Call WaitingTone.
Default setting: 3
The interval between (SIP) Dialog refresh messages sent by
the ATA to detect if the VoIP call-leg is still up. If this value is
set to 0, the VoIP call-leg status will not be checked by the
ATA. The refresh message is a SIP ReINVITE, and the VoIP
peer must response with a 2xx response. If the VoIP peer
does not reply or the response is not greater than 2xx, the ATA
will disconnect both call legs automatically. The range is 0-
255.
Default setting: 0
After a ring burst, the number of seconds to wait before
concluding that PSTN ring has ceased. The range is 0-255.
Default setting: 5
After hook, the number of seconds to wait before dialing a
PSTN number. The range is 0-255.
Default setting: 1
The on/off time when the Gateway transmits digits through
the Line (FXO) port. The syntax is on-time/off-time, expressed
in seconds. The permitted range is 0.05 to 3.00 (up to two
decimal places only).
Default setting: . 1 /. 1
The length of the hook flash in seconds.
Default setting: .25
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