Feature Tones


Revised: May 14, 2012, OL-25015-02

Introduction

This appendix explains special tones the BTS supports for subscriber and operator features.

The BTS supports these tones by sending MGCP messages to the gateways.

Tones per Feature

Table A-1 Feature Tones 

Feature
Tone
Condition(s) That Initiate Tone 1

AC

ALERTING PATTERN 3

 

ACR

No tone

ACRA

ACRD

CONFIRMATION TONE

Anonymous call rejection (ACR) was successfully activated or deactivated by subscriber actions.

REORDER TONE

ACR was not successfully activated or deactivated by subscriber actions.

AR

ALERTING PATTERN 3

 

BLV/OI

REORDER TONE

Normal access is not available.

There is a local office problem.

The line is momentarily unavailable.

No-test access is not available.

BUSY VERIFICATION

CFU is activated on the terminating line.

Terminating line is a data-only line or a denied line.

PERMANENT SIGNAL TONE

Line up to receiver off-hook tone.

Terminating line receiving a permanent signal announcement.

Terminating line is high and wet (battery and ground shorted) or high and dry (off hook for an extended period).

CW

CIDCW

CW TONE

If called party has MDN feature: primary DN matched.

If called party is in Centrex system with DACWI: there is no extension for the number dialed.

If called party has DRCW feature: calling party is not on the DRCW screening list.2

CW TYPE 2

If called party has MDN feature: second DN matched.

If called party is in Centrex system with DACWI: extension exists for the number dialed.

CW TYPE 3

If called party has MDN feature: third DN matched.

CW TYPE 4

If called party has DRCW feature: calling party is on the DRCW screening list.2

STUTTER TONE

For Centrex subscriber with CHD feature and currently on an active call: A third party calls in, and the called party hears a call-waiting tone. The called party presses Flash button or switchhook to place the current remote station on hold, and hears the stutter tone.

The called party has the following options:

Press Flash button or switchhook again to return to the original call.

Dial a designated vertical service code (VSC)—typically *52—to be connected to the new calling party; the first calling party is kept on hold.

TONES OFF

No tones are played for CW or CIDCW. (Tones are turned off under certain special circumstances.)

ALERTING PATTERN 1

Alerting pattern (ringing) is provided to the calling party and called party, as applicable, for all reconnect, re-ring, callback and recall scenarios.

CCW

CONFIRMATION TONE

The subscriber in two-way call cancels call waiting.

DIAL TONE

POTS or Centrex subscriber picks up phone to cancel call waiting.

STUTTER TONE

The subscriber places the other party on hold (CHD) and then activates CCW while call is still on hold.

ALERTING PATTERN 1

The subscriber goes on hook with the other party still on hold; the BTS provides alerting pattern (ringing).

CDP

DIAL TONE

The subscriber is granted access to an outside (public) line, typically after dialing 9.

ALERTING PATTERN 3

Member of a Centrex group receives an incoming call from the group attendant.

CFU

REMINDER RING TONE

Alerting pattern (ringing) is provided on the called station to indicate that a call has been received and automatically forwarded.

CFU-ACT

STUTTER TONE

The subscriber has successful activated CFU from the handset.

DIAL TONE

The subscriber has dialed the CFU-ACT star code, and the BTS is ready to receive digits for the forward-to DN.

1-second timer elapses following the confirmation tone.

CONFIRMATION TONE

Centrex subscriber successfully activates extension forwarding.

If the subscriber has multiple call forwarding (MCF), the subscriber has successfully activated a chain call forwarding scenario

POTS subscriber receives ROUTE SELECTED DIALING PLAN.

REORDER TONE

The CFU-ACT attempt was not successful due to

Attempt to activate CFU when it was already activated

Attempt to forward calls to a DN that could not be reached

Attempt to forward call from a DN to itself.

CFU-DEACT

CONFIRMATION TONE

The subscriber successfully deactivates CFU.

DIAL TONE

1-second timer elapses following the confirmation tone.

REORDER TONE

The subscriber attempts to deactivate CFU when it was already deactivated

CFB-ACT and CFNA-ACT

DIAL TONE

The subscriber has dialed the CFB-ACT or CFNA-ACT star code, and the BTS is ready to receive digits for the forward-to DN.

CONFIRMATION TONE

The subscriber successfully activates CFB or CFNA.

DIAL TONE

1-second timer elapses following the confirmation tone.

CFB-DEACT and CFNA-DEACT

CONFIRMATION TONE

The subscriber has dialed the CFB-DEACT or CFNA-DEACT star code, and CFB or CFNA has been deactivated.

DIAL TONE

Issued after a 1-second timer elapses following the confirmation tone.

CHD

STUTTER TONE

For Centrex subscriber (controlling party) currently on an active call: The controlling party places the other party on hold by pressing the Flash button or switchhook, and hears the stutter tone.

Controlling party has the following options:

Press Flash button or switchhook again to return to the original call.

Dial a designated vertical service code (VSC)—typically *52—hear the stutter tone again, then dial a third party. The first calling party is kept on hold.

ALERTING PATTERN 1

Alerting pattern (ringing) is provided to the calling party and called party, as applicable, for all reconnect, re-ring, callback and recall scenarios.

CNAM

CND

No tone

CNDB

CNAB

CIDB

CIDS

DIAL TONE

The subscriber has dialed the star code for the identity blocking feature, and the BTS is ready to receive digits for the DN to be called.

COS:

Account Codes

CONFIRMATION TONE

The BTS prompts the subscriber to enter the account code.

COS:

Authorization Codes

CONFIRMATION TONE

The BTS prompts the subscriber to enter the authorization code.

CPRK

REORDER TONE

The subscriber has dialed the call park (CPRK) access code, but is not subscribed to the CPRK feature.

The subscriber has CPRK and has dialed the CPRK access code, but the CPRK attempt was not successful.

Note In this case (CPRK attempt was not successful), the reorder tone is played for two seconds, and then the subscriber is reconnected to the original call.

STUTTER TONE

The subscriber presses Flash button or switchhook to park the call.

CPRK_RET

REORDER TONE

The subscriber has CPRK and has dialed the CPRK access code, but is unable to retrieve the call.

STUTTER TONE

The subscriber enters the CPRK_RET access code, and the BTS is waiting for the subscriber to dial the extension against which the parked call should be retrieved.

CT/TWC

ALERTING PATTERN 1

The subscriber hangs up with one party on hold.

DACWI

ALERTING PATTERN 3

Distinctive ring pattern.

DPN

STUTTER TONE

The subscriber has dialed DPN access code, and DPN access has been granted.

REORDER TONE

Reorder tone is returned to the subscriber who initiated a DPN request when any of the following occurs:

The DPN feature has not been assigned to the requesting line.

The dialed extension is not assigned in the business group dialing plan.

The line associated with the dialed extension is not being rung. (Note that "being rung" should not include being given call-waiting treatment.)

The call has been answered, picked up, or abandoned.

The requesting line is not allowed to pick up the particular call because of being assigned the fully restricted terminating or the denied termination feature.

DPU

STUTTER TONE

The subscriber has dialed DPU access code, and DPU access has been granted.

REORDER TONE

Reorder tone is returned to the subscriber who initiated a DPU request when any of the following occurs:

The dialed extension is not assigned in the business group dialing plan.

The line associated with the dialed extension is not assigned the DPU feature.

The line associated with the dialed extension is neither being rung nor involved in a stable two-way call. (Note that "being rung" should not include being given call-waiting treatment. Note also that DPU should not allow a subscriber to barge-in on the controller of a multiway connection, that is, a call-waiting configuration, a call-hold configuration, or a conference call.)

The call is abandoned by the caller before the DPU request is recognized or has been picked up by a line without DPU assigned.

The requesting line is not allowed to pick up the particular call because of being assigned the fully restricted terminating or the denied termination feature.

CONFIRMATION TONE

Barge-in connection is being processed and connection will occur within one second.

Note Confirmation tone is repeated twice.

DRCW

ALERTING PATTERN 1

DN of incoming call is not on the DRCW screening list.

ALERTING PATTERN 6

DN of incoming call is on the DRCW screening list.

CW TONE

DN of incoming call is not on the DRCW screening list.

CW TYPE 4

DN of incoming call is on the DRCW screening list.

Emergency—911

ALERTING PATTERN 1

After a normal two-party call, the subscriber presses the Flash button or hookswitch, dials 911, and then hangs up before the 911 operator answers.

MDN

ALERTING PATTERN 1

Station is on hook and there is an incoming call to primary DN.

ALERTING PATTERN 4

Station is on hook and there is an incoming call to secondary DN.

ALERTING PATTERN 5

Station is on hook and there is an incoming call to the third DN.

CW TONE

Station is off hook and there is an incoming call to primary DN.

CW TYPE 2

Station is off hook and there is an incoming call to secondary DN.

CW TYPE 3

Station is off hook and there is an incoming call to the third DN.

MWI 3

MWI TONE

The subscriber has MWI service and has a message waiting.

MIDCALL

STUTTER TONE

After pressing Flash button or hookswitch and the BTS acknowledges it is as a valid midcall action.

ALERTING PATTERN 1

The subscriber goes on hook with the other party still on hold; the BTS provides alerting pattern (ringing).

SC1D-ACT

SC2D-ACT

STUTTER TONE

Stutter tone is used once after the subscriber enters the *74 (SC1D activation) or *75 (SC2D activation) to begin the process of collecting the information required to provision one of the speed call slots. After a speed call slot has been successfully provisioned, the subscriber will again receive the stutter tone to signify that the speed call slot was successfully provisioned.

VMWI 3

STUTTER TONE

The subscriber has VMWI and has a message waiting, but the serving MGW does not have a visual indicator.

1 When more than one condition is listed for a single tone, any one of the conditions can cause the tone to be played.

2 For more information on the screening list, refer to the Cisco BTS 10200 Softswitch System Description.

3 MWI = message waiting indicator; VMWI = visual message waiting indicator.


Tone Frequencies and Cadences

Tones are requested by the BTS and delivered to the subscriber or operator by the MGW. Some MGWs can be provisioned to play tone cadences different than the ones described in this table.

Table A-2 Subscriber and Operator Tone Descriptions 

Tone
Frequency (Hz)
Cadence Played by MGW

Alerting pattern (ringing) 1

440 + 480

2 sec on, 4 sec off, repeating

Alerting pattern (ringing) 2

440 + 480

0.8 sec on, 0.4 sec off, 0.8 sec on, 4.0 sec off, repeating

Alerting pattern (ringing) 3

440 + 480

0.4 sec on, 0.2 sec off, 0.4 sec on, 0.2 sec off, 0.8 sec on, 4 seconds off, repeating

Alerting pattern (ringing) 4

440 + 480

0.3 sec on, 0.2 sec off, 1 sec on, 0.2 sec off, 0.3 sec on, 4 sec off, repeating

Alerting pattern (ringing) 5

440 + 480

0.5 sec on once

Alerting pattern (ringing) 6

440 + 480

1 sec on, 3sec off, repeating

Busy verification
(used for operator BLV 1 )

440

2 sec burst, followed by 0.5 sec burst every 10 sec

CW tone

440

0.3 sec on once

CW Type 1

440

0.3 sec on once

CW Type 2

440

0.1 sec on, 0.1 sec off, 2 times

CW Type 3

440

0.1 sec on, 0.1 sec off, 3 times

CW Type 4

440

0.1 sec on, 0.1 sec off, 0.3 sec on, 0.1 sec off, 0.1 sec on

Confirmation tone

350 + 440

0.1 sec on, 0.1 sec off, 3 times

Dial tone

350 + 440

steady on

Line busy tone

480 + 620

0.5 sec on, 0.5 sec off, repeating

Message waiting indicator tone

350 + 440

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

Off-hook warning tone
(receiver off-hook tone)

1400 + 2060 + 2450 + 2600

0.1 sec on, 0.1 sec off, repeating

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-3 lists 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 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


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