Linksys RTP300 User Guide - Page 154

PSTN Line page (AG310 and SPA3102) Field (PSTN) Long Silence Duration Silence Threshold Disconnect Tone Description This value 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. 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. This value 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 Disconnect Tone Script and Impedance value for various countries follow: US-480@-30,620@-30;4(.25/.25/1+2) -Impedance: 600 UK-400@-30,400@-30; 2(3/0/1+2) -Impedance: 370+620 France-440@-30,440@-30; 2(0.5/0.5/1+2) -Impedance: 270+750||150nF Germany-425@-10; 10(0.48/0.48/1) -Impedance:220+820||120nF Netherlands-425@-30,425@-30; 2(0.5/0.5/1+2) -Impedance: 600 Sweden-425@-10; 10(0.25/0.25/1) -Impedance:600 Norway-425@-10; 10(0.5/0.5/1) -Impedance: 600 Italy-425@-30,425@-30; 2(0.2/0.2/1+2)- Impedance: 220+820||120nF Spain-425@-10; 10(0.2/0.2/1,0.2/0.2/1,0.2/0.6/1) -Impedance: 220+820||120nF Portugal-425@-10; 10(0.5/0.5/1)- Impedance:220+820||120nF Poland-425@-10; 10(0.5/0.5/1)- Impedance: n/a Denmark-425@-10; 10(0.25/0.25/1)- Impedance: 600 Linksys ATA Administration Guide 154