A-7
Cisco BTS 10200 Softswitch Operations and Maintenance Guide, Release 6.0.x
OL-16000-07
Appendix A Feature Tones
Tone Frequencies and Cadences
Table A-3 lists the maintenance tones used for continuity testing. See the Telcordia document
GR-317-CORE for additional details.
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
Permanent signal
(used for operator BLV 1)
480 Steady on
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-2 Subscriber and Operator Tone Descriptions (continued)
Tone Frequency (Hz) Cadence Played by MGW
Table A-3 Maintenance Tone Descriptions
Tone Frequency (Hz) Description
2010-Hz
continuity tone
2010 Used for single-tone test under either of the following conditions:
• 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
continuity tone
1780 Used for dual-tone test with a 4-wire circuit at the transceiver end and a 2-wire circuit
at the distant end