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Not supported by SBC SWe Lite in this release.

For the Sonus SBC 2000, each Analog CAS Signaling Group is limited to a maximum of 24 FXS ports.

To create or modify an existing CAS Signaling Group:

  1. In the WebUI, click the Settings tab.
  2. In the left navigation pane, go to Signaling Groups.
  3. From the Create Signaling Group drop down box, select CAS Signaling Group.

    Figure : Signaling Group Table

Modifying a CAS Signaling Group

  1. Click the expand () Icon next to the entry you wish to modify.
  2. Edit the entry properties as required, see details below.

Creating a CAS Signaling Group

(warning) Before you can configure a CAS Signaling Group, you must have defined at least one CAS Signaling Profile.

To create a CAS Signaling Group:

  1. From the Create Signaling Group drop down box at the top of the Signaling Group Table, select CAS Signaling Group.

    Figure : Create CAS Signaling Group

CAS Signaling - Field Definitions

Line Type

Specifies whether or not this CAS Signaling Group is applied to an analog or digital line.

Admin State

Specifies the admin state of the Signaling group.

  • Enable: Enables the signaling group.
  • Disable: Disables the signaling group.
  • Drain: When Drain is selected, calls that are currently up remain connected. However, new calls and forking are not allowed for the Signaling Group. This allows all the calls to be drained from the SG.

CAS Protocol - Field Definitions

CAS Signaling Profile

Specifies the CAS Signaling Profile to use with this CAS Signaling Group.

Supplementary Services Profile

Specifies whether or not Supplementary Services are supported in this CAS SG. Shown only when the specified CAS Signaling Profile is set to a Loop Start Signaling Profile.

Call Information Format

Species the format of call information sent and received using E&M as the CAS Signaling Profile (E&M Caller ID). Select from the drop down list. Valid entries:

  • Called Party. Called Party number, default configuration where E&M Caller ID feature is not supported.
  • Calling-Called. Calling party number is followed by Called party number. Example:<Start Digit> <Calling Party number> <Delimiter Digit> <Called Party number> <End Digit>.
  • Called-Calling. Called party number is followed by Calling party number. Example:<Start Digit> <Called Party number> <Delimiter Digit> <Calling Party number> <End Digit>.

This field is available only when Line Type is set as Digital and CAS Signaling Profile is set as E&M. (Ensure E&M is configured as a CAS Signaling Profile. See Creating and Modifying E&M CAS Profiles.)

Start Digit

Specifies the first digit of call information sent or received. Select from the drop down list. Valid entry: A, B, D, # or *. Default entry: *.

This field is available only when Call Information Format is set to Calling-Called or Called-Calling.

Delimiter Digit

Specifies the call information digit separating calling and called numbers. Select from the drop down list. Valid entry: A, B, D, # or *. Default entry: *.

This field is available only when Call Information Format is set to Calling-Called or Called-Calling.

End Digit

Specifies the last digit of call information sent or received. Select from the drop down list. Valid entry: A, B, D, # or *. Default entry: *.

This field is available only when Call Information Format is set to Calling-Called or Called-Calling.

Caller ID Type

Specifies the Caller ID Type for this signaling group. This field is visible only when the Line Type is set to Analog.

Typical Caller ID Types by Country

(info) Not all countries are standardized on which Caller ID Type they use. This list contains suggested types for certain countries, and some countries use multiple types. If the Caller ID Type listed here for your country, you may need to contact your local service provider.

Caller ID Type

Countries

DTMF

Brazil, Belgium, Denmark, Finland, Iceland, India, Netherlands, Saudi Arabia, Sweden, Uruguay and some parts of Taiwan

DTMF - No Ring

Taiwan and some parts of China

DTMF - Reverse Battery

Taiwan and China

ETS - Reverse Battery

Taiwan

ETSI

France, Germany, Norway, Italy, Spain, South Africa, Turkey, and some parts of Taiwan

FSK

Mexico, USA, Canada, Australia, New Zealand Singapore, Hong Kong, and some parts of China

FSK - No Ring

UK, Taiwan, and some parts of China

NTT - Japan CID

Japan

Caller ID Start Delimiter

Specifies the DTMF tones used as the caller ID start delimiter. This attribute is applicable only if the signaling profile is of type FXS or FXO, only if the Line Type is Analog, and only if the Caller ID Type iss DTMF, DTMF No Ring, or DTMF Reverse Battery.

Caller ID End Delimiter

Specifies the DTMF tones used as the caller ID end delimiter. This attribute is applicable only if the signaling profile is of type FXS or FXO, only if the Line Type is Analog, and only if the Caller ID Type iss DTMF, DTMF No Ring, or DTMF Reverse Battery.

Play Ringback

Specifies when to play the ringback tone on the channel.

Caller ID Privacy Signaling

The Calling ID Privacy Signaling field can contain up to five characters that are sent in place of the calling party number in cases where the outgoing call is marked as blocked or restricted. The range of characters configured for privacy signaling is limited when it is configured for DTMF or FSK. See the following table for details.

Caller ID Type

Valid Characters

Calling Party Number Sent

FSK

Any

Characters configured in privacy signaling field
FSKNone enteredA single character 'P' to indicate private

DTMF

0-9, A-z, * and #

Characters configured in privacy signaling field
DTMFNone enteredNothing is sent, calling party number is blank

Call Forwarding Feature

Used to enable/disable the Call Forward feature at the Signaling Group level. The Call Forward feature allows a phone connected to an FXS port to forward calls to another telephone number. Available options: Enabled or Disabled. Once this field is enabled, the Call Forwarding Activate DTMF and Call Forwarding Deactivate DTMF fields become visible. To enable at the channel level, you must activate at the Assigned Channel Table, Assigned Channels - Field Definitions, or activate through the physical phone, How to Operate Call Forward on Telephone. Once Call Forward is activated and a keycode is configured, you must configure a route on the SBC to route the forwarded number. If a route is not provided, the call will fail.

Call Forwarding Availability

Call forwarding is supported for Analog FXS only.

Field Behavior

The Call Forwarding Feature field is only visible when Analog is selected in the Line Type field.  If the Line Type has been set to Analog and Call Forwarding has been enabled then Line Type is subsequently set to Digital:

  • Call Forwarding is automatically disabled.
  • The Call Forwarding Feature field is hidden.

The Call Forwarding feature enables a phone connected to an FXS port to forward incoming calls to another configured telephone number. The SBC supports unconditional call forward on an individual port basis. Call Forward is activated/deactivated on a port with configured specific service codes, accompanied by the forward number. Once the user enters the configured keycode and forward telephone number, all outgoing calls to the port will then be redirected to the forwarding number. When the outgoing call routes to a port that is forwarded, the phone on that port generates a short ring.

In North America, the NANP defines *72<forward number> for activation and *73 for deactivation, but the SBC enables you to configure any 6 character combination for activation and/or deactivation. The SBC enables a keycode to have a minimum length of 3 characters and a maximum of 6; this is based on what is commonly used today.

The SBC supports a basic Unconditional Call Forward, but it allows various characters to be configured for keycodes. This includes the '#' character, which is defined in the SBC as an End of Dial digit. In order to determine if an entry is part of a Call Forward activate or deactivate keycode, End of Dial behavior is ignored for the first 6 characters dialed. If the SBC finds that the digits do not match the call forward keycode, it will parse the number backwards to the last '#' (if there is one) and remove it before sending the number for routing. This means that '#' will not stop the inter-digit timer and immediately send the number during collection of the first 6 digits.

Figure : Call Forwarding Feature

 

Activate through a Telephone

The Call Forward feature can be initiated with the following steps:

  • Lift the handset to the port (in which calls will be forwarded) and enter the activate keycode + forwarded number, followed by the '#' key on the telephone.
  • A confirmation tone (fast beep) indicates a successful Call Forward. A congestion tone (busy tone) indicates call forward failed.
  • An activation at the physical phone level automatically activates the feature for the applicable channel in the Assigned Channels table. See Assigned Channels - Field Definitions.

Deactivate through a Telephone

  • Lift the handset connected to the port in which calls are being forwarded (that requires deactivation) and enter the deactivate keycode.
  • A confirmation tone (fast beep) indicates a successful Call Forward deactivation. A congestion tone (busy tone) indicates call forward has not been deactivated.

 

Activate on a Channel through the Channel Table

The Call Forward feature can be activated for a specific channel through the Assigned Channels table as follows:

In order for the feature to be available at the channel level, ensure the Call Forwarding feature is enabled under CAS Protocol. See #Call Forwarding Feature.

  1. In the WebUI, click the Settings tab.
  2. In the left navigation pane, go to Signaling Groups.
  3. Click the expand ( ) icon next to the entry you wish to modify.
  4. At the Assigned Channels table, click on the icon.
  5. From Channel Selection Method, select Single Port.
  6. From Call Forward Activated, select Yes.
  7. In Call Forwarding Number box, enter the number to which the call will be forwarded.
  8. Click Apply.

Deactivate on a Channel through Channel Table

The Call Forward feature can be deactivated for a specific channel through the Assigned Channels table as follows:

  1. In the WebUI, click the Settings tab.
  2. In the left navigation pane, go to Signaling Groups.
  3. Click the expand ( ) icon next to the entry you wish to modify.
  4. In the Assigned Channels table, click on the ( ) icon next to the entry in which you want to deactivate Call Forward.
  5. From Call Forward Activated, select Disable.
  6. Click Apply.

 

Call Forwarding Activate DTMF

Code used to activate the Call forward feature on a specific FXS port. This field is configurable up to a 6 character combination. Default entry: *72.

Call Forwarding Deactivate DTMF

Code used to deactivate the Call forward feature on a specific FXS port. This field is configurable up to a 6 character combination. Default entry: *73.

Channels and Routing - Field Definitions

Channel Hunting

Specifies the channel hunting method. Not Applicable when Direction is Incoming.

  • Standard: This option assigns first available low numbered channel.
  • Reverse Standard: This option assigns last available high numbered channel.
  • Round Robin: This option assigns channels based on next available from low numbered to high numbered.
  • Least Idle: This option chooses channels based on the least idle channel.
  • Most Idle: This option chooses channels based on the most idle channel.
  • Own Number: This option chooses it's own channel if the number dialed belongs to it.

Direction

Specifies the direction of calls handled by this signaling group.

Tone Table

Specifies the tone table to use with this signaling group. The Tone Table field is visible only when the Direction attribute is set to Bidirectional or Inbound.

Action Set Table

Specifies the Action Set to use with this signaling group. Available only when the Direction attribute is set to Bidirectional or Inbound.

When an Action Set Table is specified (not "none") it takes precedence over Route Table.

Call Routing Table

Specifies which Routing Table to use with this Signaling Group. The Call Routing Table field is visible only when the Direction attribute is set to Bidirectional or inbound.

No Channel Available Override

In the event of a "No Channel/Circuit available" release cause code, the specified cause code will be sent to the relevant protocol module. For more information see the list of Cause Codes.

NOTE: This attribute relates only to Inbound calls on the Signaling Group where applied.

Call Setup Response Timer

Specifies the interval of time, in milliseconds, after an call is initiated that the Sonus SBC 1000/2000 waits for a call to connect before terminating the incoming call.

Assigned Channels - Field Definitions

Channels are assigned to specific Signaling Groups (SG). The channels for a digital SG can be made up of all or part of channels from one or more digital ports in the system. Likewise, "channels" for 1 analog SG can be made up of any analog ports in the system. When you click on the icon, the Create Assigned Channels window is displayed. Field definitions are below.

For a CAS Signaling Group using E&M/Loop Start signaling (T1/Analog) or CAS R2 (E1), a maximum of 48 channels can be assigned to the signaling group.

For E1, limit channels to 30 (to not go over the maximum 48 channels). Otherwise, the following will occur:

  • The span (48 channels) is split across two signaling groups. 
  • When the limit of 48 channels in the span is met, 18 channels from one of the signaling groups must be deleted before a new signaling group can be created.

 

DS1 Port Selection

Specifies the DS1 port from which channels will be assigned to this SG. This field is only visible when the Line Type is specified as Digital.

Channel Selection Method

Specifies the method by which to assign ports to analog cards or channels to digital ports. Available options: Digital (All Channels, Single Channel, or Range of Channels), Analog (All Ports on a Card or Single Port). 

Analog Card Selection

Specifies the analog card to which ports will be assigned. This field is only visible when the #Line Type is specified as Analog.

Channel Phone Number

Specifies a specific phone number to assign to a channel.

Enable FXS Hotline

Enables a user or device to seize an FXS line on the SBC and have it automatically routed to a pre-configured destination number. If enabled, this number is configured in the Hotline Number field. Valid entries: Yes or No.

Hotline Number

Number to which an FXS line is automatically routed. Available only if Enable FXS Hotline is set to Yes.

Call Forwarding Activated

Indicates whether the Call Forwarding feature is activated on that channel. Call Forward allows a phone connected to an FXS port to forward calls to another telephone number. Available options: Yes or No. An activation at the physical phone level automatically activates the feature in this field for the applicable channel

Call Forwarding Number

Specifies the telephone number in which forwarded calls are sent. Available only when Call Forwarding Activated is set to Yes. An activation at the physical phone level automatically activates the feature in this field for the applicable channel.