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Page 146 / 186 Scroll up to view Page 141 - 145
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Linksys IP Phone Administrator Guide
Document Version 3.2
Chapter 5
Linksys ATA Field Reference
PSTN Line Tab
PSTN Disconnect Detection
PSTN Hook Flash Len
The length of the hook flash in seconds. During a PSTN-to-VoIP gateway call, the Linksys
ATA processes the out-of-band hook flash signal sent from the VoIP peer through a
hook-flash (momentary on-hook signal) on the FXO port. This allows the VoIP peer to
initiate a three-way conference call and subsequent call transfer. The duration of the
on-hook signal can be configured using this parameter.
The default is 0.25. The permitted range is limited to 0.02 to 1.6 seconds.
PSTN Ring Thru CWT Delay
Specify the delay before incoming PSTN calls will ring Line 1 using a Call Waiting
Tone. The default is
3
.
PSTN Ring Timeout
Specify the delay after a ring burst before the Gateway decides that the PSTN ring has
ended. The default is
5
.
PSTN Dialing Delay
Specify the delay after the PSTN phone line is on-hook before the Gateway dials a PSTN
number. The default is
1
.
PSTN Dial Digit Len
Specify the on/off time when the Gateway transmits digits through the Line (FXO) port.
The syntax is on-time/off-time, expressed in seconds with up to two decimal places. The
permitted range is 0.05 to 3.00. The default is
.1/.1
.
Field
Description
Field
Description
Detect CPC
CPC is a brief removal of tip-and-ring voltage. If enabled, the SPA will disconnect both
call legs when this signal is detected during a gateway call.
The default is yes.
Detect Polarity Reversal
If enabled, SPA will disconnect both call legs when this signal is detected during a
gateway call. If it is a PSTN gateway call, the 1st polarity reversal is ignored and the 2
nd
one triggers the disconnection. For VoIP gateway call, the 1
st
polarity reversal triggers the
disconnection.
The default is yes.
Detect (PSTN) Long Silence
I
f enabled, SPA will disconnect both call legs when the PSTN side has no voice activity
for a duration longer than the length specified in <Long Silence Duration> during a
gateway call
The default is yes.
Min CPC Duration
Specify the minimum duration of a low tip-and-ring voltage (below 1V) for the Gateway
to recognize it as a CPC signal or PSTN line removal. The default is
0.2
.
Detect Disconnect Tone
If enabled, SPA will disconnect both call legs when it detects the disconnect tone from the
PSTN side during a gateway call. Disconnect tone is specified in the <Disconnect Tone>
parameter, which depends on the region of the PSTN service.
The default is yes.
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Document Version 3.2
Chapter 5
Linksys ATA Field Reference
PSTN Line Tab
International Control (Settings)
(PSTN) Long Silence Duration
This is minimum length of PSTN silence (or inactivity) in seconds to trigger a gateway
call disconnection if <Detect Long Silence> is yes.
The default is 30.
Silence Threshold
This parameter adjusts the sensitivity of PSTN silence detection. Choose from {very low,
low, medium, high, very high}. The higher the setting, the easier to detect silence and
hence easier to trigger a disconnection.
The default is medium.
Disconnect Tone
This is the tone script which describes to the SPA the tone to detect as a disconnect tone.
The syntax follows a standard Tone Script with some restrictions. Default value is
standard US reorder (fast busy) tone, for 4 seconds.
Restrictions:
2 frequency components must be given. If single frequency is desired, the same frequency
is used for both
The tone level value is not used. –30 (dBm) should be used for now.
Only 1 segment set is allowed
Total duration of the segment set is interpreted as the minimum duration of the tone to
trigger detection
6 segments of on/off time (seconds) can be specified. A 10% margin is used to validated
cadence characteristics of the tone.
The default is 480@-30,620@-30;4(.25/.25/1+2).
Field
Description
Field
Description
FXO Port Impedance
Desired impedance of the FXO Port. Choose from {600, 900, 270+.
The default is 600.
Ring Frequency Min
Specify the lower limit of the ring frequency used to detect the ring signal. The default is
10
.
SPA To PSTN Gain
dB of digital gain (or attenuation if negative) to be applied to the signal sent from the SPA
to the PSTN side. The range is -15 to 12.
The default is 0.
Ring Frequency Max
Specify the higher limit of the ring frequency used to detect the ring signal. The default
is
100
.
PSTN To SPA Gain
dB of digital gain (or attenuation if negative) to be applied to the signal sent from the
PSTN side to the SPA. The range is -15 to 12.
The default is 0.
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Linksys IP Phone Administrator Guide
Document Version 3.2
Chapter 5
Linksys ATA Field Reference
PSTN Line Tab
Ring Validation Time
Specify the minimum signal duration required by the Gateway for recognition as a ring
signal. The default is
256 ms
.
Tip/Ring Voltage Adjust
Choices are {3.1, 3.2, 3.35, 3.5}.
The default is 3.5.
Operational Loop Current Min
Choices for mA are: {10, 12, 14, 16).
The default is 10.
On-Hook Speed
Choose from {Less than 0.5ms, 3ms (ETSI), 26ms (Australia)}.
The default is Less than 0.5ms.
Current Limiting Enable
Enable or disable current limiting.
The default is no.
Ring Frequency Min
Minimum ring frequency to detect. The range is 5-100.
The default is 10.
Ring Frequency Max
Maximum ring frequency to detect. The range is 5-100.
The default is 100.
Ring Validation Time
Choose from {100, 150, 200, 256, 384, 512, 640, 1024} (ms).
The default is 256ms.
Ring Indication Delay
Choose from {0, 512, 768, 1024, 1280, 1536, 1792} (ms).
The default is 512ms.
Ring Timeout
Choose from {0, 128, 256, 384, 512, 640, 768, 896, 1024, 1152, 1280, 1408, 1536, 1664,
1792, 1920} (ms).
The default is 640 ms.
Ring Threshold
Choose from {13.5–16.5, 19.35–2.65, 40.5–49.5} (Vrms).
The default is 13.5-16.5 Vrms.
Ringer Impedance
Choose from {High, Synthesized(Poland, S.Africa, Slovenia)}.
The default is high.
Line-In-Use Voltage
Determines the voltage threshold at which the SPA-3000 assumes the PSTN is in use by
another handset sharing the same line (and will declare PSTN gateway service not
available to incoming VoIP callers).
The default value is 40v.
Field
Description
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Chapter 5
Linksys ATA Field Reference
User 1/2 Tab
User 1/2 Tab
This section describes the fields for the following headings on the User 1 and User 2 tabs:
•
Call Forward Settings, page 5-65
•
Selective Call Forward Settings, page 5-66
•
Speed Dial Settings, page 5-67
•
Supplementary Service Settings, page 5-67
•
Distinctive Ring Settings, page 5-68
•
Ring Settings, page 5-68
User 1/2 refers to the subscriber of Line 1 or Line 2.
Note
For the SPA8000, the settings on this page occur on each Line tab ([1] to [8]).
When a call is made from Line 1 or Line 2, Linksys IP phone shall use the user and line settings for that
Line; there is no user login support in Linksys IP phone v1.0. Per user parameter tags must be appended
with [1] or [2] (corresponding to line 1 or 2) in the configuration profile. It is omitted below for
readability.
Note
References in this section to the SPA3102 also apply to the AG310.
Call Forward Settings
Field
Description
Cfwd All Dest
Forward number for Call Forward All Service
In addition to normal call forward destination as used in the other ATAs, on the SPA3102,
you can specify the following additional parameters:
•
gw0 – forward the caller to use the PSTN gateway
•
<pstn-number>@gw0 – forward to caller to the PSTN number (dialed automatically
by the SPA through the PSTN gateway)
The default is blank.
Cfwd Busy Dest
Forward number for Call Forward Busy Service. Same as Cfwd All Dest.
The default is blank.
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Chapter 5
Linksys ATA Field Reference
User 1/2 Tab
Selective Call Forward Settings
Cfwd No Ans Dest
Forward number for Call Forward No Answer Service. Same as Cfwd All Dest.
In addition to normal call forward destination as used in the other ATAs, on the SPA3102,
you can specify the following additional parameters:
•
gw0 – forward the caller to use the PSTN gateway
•
<pstn-number>@gw0 – forward to caller to the PSTN number (dialed automatically
by the SPA through the PSTN gateway)
The default is blank.
Cfwd No Ans Delay
Delay in sec before Call Forward No Answer triggers. Same as Cfwd All Dest.
The default is 20.
Field
Description
Field
Description
Cfwd Sel1/2/3/4/5/6/7/8 Caller
Caller number pattern to trigger Call Forward Selective 1, 2, 3, 4, 5, 6, 7, or 8.
The default is blank.
Cfwd Sel1/2/3/4/5/6/7/8 Dest
Forward number for Call Forward Selective 1, 2, 3, 4, 5, 6, 7, or 8.
Same as Cfwd All Dest.
The default is blank.
Block Last Caller
ID of caller blocked via the Block Last Caller service.
The default is blank.
Accept Last Caller
ID of caller accepted via the Accept Last Caller service.
The default is blank.
Cfwd Last Caller
The Caller number that is actively forwarded to <Cfwd Last Dest> by using the Call
Forward Last activation code
The default is blank.
Cfwd Last Dest
Forward number for the <Cfwd Last Caller>
Same as Cfwd All Dest.
The default is blank.

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