Appendix A Feature Tones

Tone Frequencies and Cadences

Table A-2

Subscriber and Operator Tone Descriptions (continued)

 

 

 

 

Tone

 

Frequency (Hz)

Cadence Played by MGW

 

 

 

Permanent signal

480

Steady on

(used for operator BLV 1)

 

 

Reminder ring tone (ring splash)

440 + 480

0.5 sec ring

 

 

 

 

Reorder tone

 

480 + 620

0.25 sec on, 0.25 sec off, repeating

 

 

 

Ringback tone (audible ringing)

440 + 480

2 sec on, 4 sec off (repeated)

 

 

 

Stutter (recall) dial tone

350 + 440

3 bursts (0.1 sec on, 0.1 sec off), then steady on

 

 

 

 

1. BLV = busy line verification

Table A-3lists the maintenance tones used for continuity testing. See the Telcordia document

GR-317-CORE for additional details.

Table A-3 Maintenance Tone Descriptions

Tone

Frequency (Hz)

Description

 

 

 

2010-Hz

2010

Used for single-tone test under either of the following conditions:

continuity tone

 

The circuit is a 4-wire circuit at both the transceiver end and the distant end

 

 

 

 

The circuit is a 2-wire circuit at the transceiver end

 

 

 

1780-Hz

1780

Used for dual-tone test with a 4-wire circuit at the transceiver end and a 2-wire circuit

continuity tone

 

at the distant end

 

 

 

All tones are based on information in the following:

Telcordia document GR-506-CORE, Signaling for Analog Interfaces

Telcordia document TR-NWT-506, Issue 3, Signaling

Telcordia document GR-590-CORE, Call Pickup Features (FSD 01-02-2800)

Telcordia document GR-317-CORE, Switching System Generic Requirements for Call Control Using the Integrated Services Digital Network User Part (ISDNUP)

Telcordia document GR-219-CORE, Distinctive Ringing/Call Waiting (FSD 01-01-1110).

IETF document RFC 2705, Media Gateway Control Protocol (MGCP) Version 1.0

Cisco BTS 10200 Softswitch Operations and Maintenance Guide, Release 6.0.x

 

OL-16000-07

A-7

 

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Cisco Systems 10200 manual Tone Frequency Hz Description