Specifications

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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