Channel Group

Description:

This pane defines incoming and outgoing attributes for a channel. It identifies the tables to be used for routing and translating calls. It also identifies the IP bearer profiles for H.323 channel groups.

Note: Many of the parameters that you specify for a channel group are defined as routing-related tables. Therefore, you must define the applicable tables at the routing level before you can assign them to a channel group.

 

Accessing this Pane:

Dialogic IMG EMS -> Routing Configuration -> Channel Groups-> Channel Group

SC_Tree_Chann_Grp.png

 

Maximum Objects:

672 per EMS

 

Related Topics:

Creating a Channel Group

Creating_an_H_323_Channel_Group

Creating a SIP Channel Group

Creating_an_SS7_Channel_Group

Creating an ISDN Channel Group

Creating a CAS Channel Group

 

Click on the following link HERE for technical information on the Channel Group Object.

 

 

ClientView Pane for Software (10.5.1, 10.5.2)

SC_ChannelGroup_1051.png

 

 

 

Field Descriptions:

Name:

Enter a name in this field that will identify the Channel Group. Click in the field and enter name.

 

ID:

The ID is automatically populated with the next available ID. You can change the ID by selecting a new ID from the drop down menu.

 

Channel Group Function:

This field identifies the direction of calls on this Channel Group.

Incoming/Outgoing Trunks - Two way traffic

Incoming Trunks - One way traffic, Incoming only

Outgoing Trunks - One way traffic, Outgoing only

 

Signaling Type

Select from drop down menu one of the following signaling protocols. The chosen protocol will be utilized on this Channel Group.

SS7

CAS

H323

ISDN

SIP

 

Incoming Translation Table

Identifies the Incoming translation table that the IMG uses for digit translation and error detection for incoming calls received on this Channel Group. Select from drop down menu the translation table to be used for any calls coming in to this Channel Group.

 

Route Table

Identifies the route table to be used for routing calls received on this Channel Group. Select from drop down menu the route table to be used for any calls coming in to this Channel Group.

 

Incoming Treatment

Indicates the way in which the IMG releases a failed incoming call.

Release w/Cause - The Channel will release with a cause code sent back to the initiating entity.

Play Treatment - Play a pre-determined treatment file to indicate the channel is in maintenance, out of Service, or one of many reasons a treatment would want to be played on this channel.

 

Cause Code Mapping Table

Specifies an override treatment for a cause code, enabling you to customize the cause codes with alternate treatments.

 

Incoming IP Profile

Indicates the IP characteristics for incoming Voice over IP calls on this Channel Group, including voice encoding compression, payload size, echo suppression, and other parameters. This applies to H.323 and SIP channel groups only.

 

Outgoing Translation Table

Identifies the Outgoing translation table that the IMG uses for digit translation and error detection for outgoing calls on this Channel Group. Select from drop down menu the translation table to be used for any calls going out of this Channel Group.

 

Hunting Options

This field specifies the hunting algorithm used for selecting a channel to route an outgoing call.

 

Alternate Even / Alternate Even - For alternate odd or alternate even, the IMG will choose the TDM resource based on its channel number. (i.e position in span starting at channel 0 as even)

 

LRU (Least Recently Used) - Selects the channel that has been used the least.

Most Idle - Selects the channel that has been idle the longest.

Round Robin Clockwise - Starts at the first channel in the channel group and routes down the list of available channels, and then repeats from the beginning of the list.

Round Robin Counter Clockwise - Same as Round Robin Clockwise, but it starts at the last channel in the channel group and routes up the channels.

Sequential Bottom Up - Starts at the last channel in the channel group and routes up. If a prior channel becomes available this channel is used before selecting the next channel from the end of the list.

Sequential Top Down - Starts at the first channel in the channel group and routes down. If a prior channel becomes available this channel is used before selecting the next channel from the end of the list.

 

Outgoing Treatment:

Indicates the way in which the IMG releases a failed outgoing call.

Release w/Cause - The Channel will release with a cause code.

Play Treatment - Play a pre-determined treatment file to indicate the channel is in maintenance, out of Service, or one of many reasons a treatment would want to be played on this channel.

 

Ingress Side will Play Call Progress Tones:

This field controls if the IMG will play a call progress tones to the inbound call. This should be applied to the outgoing channel group.

True - When Alerting is received on the outbound channel the IMG will generate Ring-Back to the inbound call. Setting this to true will override the behavior of mapping 18x with or without SDP.

 

False - When Alerting is received on the outbound channel the IMG will not generate Ring-Back to the inbound call.

Note: The following table applies to outbound SIP calls on the IMG.

IMG Receives

IMG

180 Ringing wo/SDP

Will play local ring-back irrespective of configuration

180 Ringing w/SDP

Will NOT play local ring-back irrespective of configuration

183 Progress w/SDP or wo/SDP

Will NOT play local ring-back irrespective of configuration

 

Outgoing IP Profile:

Identifies the IP characteristics for outgoing Voice Over IP calls on this Channel Group, including voice encoding compression, payload size, echo suppression, and other parameters. This applies to H.323 and SIP channel groups only.

 

Treatment Table

Select from a drop down menu, the treatment table that the IMG uses if a call fails on the outgoing channel group and the treatment is set to Play Treatment.

TreatmentTable ID: 1: Default

TreatmentTable ID: 2: User Created

 

Reattempt Cause Code

By default, the IMG will automatically attempt to re-route calls in response to the following cause codes: 42,41, and 34. Calls can be rerouted on up to (4) additional cause codes. This is accomplished by clicking in the 'Reattempt Cause Code' field which is located in the Channel Group ClientView Pane. A 'Select Multiple Items' box will appear with multiple Cause Codes to select from. More than one Cause Code can be chosen by selecting <CTRL> key and clicking on multiple entries. The IMG will automatically attempt to re-route calls in response to the selected cause codes.

Note: The IMG will not re-attempt if alerting is received prior to the release response.

Not Used (Default) - Feature Disabled

 

Receive Gain/Transmit Gain

Configures the Input and Output Gain on a per Channel Group basis for TDM and RTP channels. Transformations are selected from a drop down menu which include selections from -21 dB to +18 dB in 3 dB increments.  When 0 dB is selected the transformation option is disabled.

 

Clipping - In the case of TDM to TDM calls, the combined Receive and Transmit Gain will be clipped at +18 dB. For example, if channel group A had the Receive gain set to +12 dB and channel group B had its Transmit gain set to +10 dB, and the call was flowing from A to B, one would expect +22 dB of gain. However, the IMG will implement clipping, so the gain on this call would be +18 dB.  It will work the same in the reverse direction as well.

Gain Control is not supported for pre-call announcements, treatments, or ringback.

 

________________________________________________________________________________________________

 

The following fields relate to Overlap Signaling:

See Overlap Signaling for more information.

 

Overlap Enable (Receiving) ISDN, SS7, H.323 and SIP

Enabled: Enable overlap signaling on inbound Channel Groups when the outbound channel group does not support Overlap Signaling (SIP, H.323). The IMG will collect address digits until a Termination Condition is met and then continue call processing. See below for protocol-specific information. Overlap is only applied to the inbound channel, even on an Incoming/Outgoing Trunk.

Disabled (default): By default, the IMG passes only enbloc received digits to the outbound side.  

 

Overlap Enable (Sending) SIP to SS7 only

Enabled: By enabling Overlap, this will allow 'Overlap Sending' of destination address digits. In this case each received IAM and subsequent SAM messages will be interworked to a  series of INVITES each containing all the destination address digits received to that point, similarly when the SIP interface receives a series of INVITES, each containing more destination address digits than the previous one, these will be mapped into an IAM, SAM sequence with each message containing only the 'new' digits from the latest INVITE. See Overlap Sending link

 

Termination Digits

Digit to indicate end of overlap sending.

Default for SS7 Channel Group = #

Not used for ISDN

 

Minimum # of Digits

The minimum number of digits that the IMG will wait for (collect) in the incoming side before attempting an outseize on the outgoing side. Range = 1-24 (default = 24)

 

Note: This field is different from the Max # CdPN digits (IAM) field in the ISUP Group pane, which applies to the outgoing ss7 calls.

 

Inter SAM Timeout

Time to wait for another SAM digit before continuing with call processing.

Default = 1500

Not used for ISDN

 

Total Overlap Timeout

Amount of time to wait for either Minimum # of Digits or Inter SAM timeout to occur before continuing with call processing.

Default = 18000

 

Support Digit A to F  (10.5.1 +)

Select from drop down menu either False or True:

 

False: (Default) Do not support the digits 0x0a through 0x0f for translations and routing.

True : Support the digits 0x0a through 0x0f for translations and routing.

 

See the Digits 0x0a to 0x0f Support link for more information.

 

 

STATUS FIELDS:

Informational Fields (10.3.x)

SC_ChannelGroup_Info.png

Informational Fields (10.5.0 - 10.5.1 )

SC_Channel_Group_Info_10.5.0.png

 

 

Field Name

Field Description

ID

The ID number of the Channel group the stats are being displayed for.

Name

The Name given to the channel Group that the stats are being displayed

Signaling Type

What type of signaling this channel group is using. (SIP, H.323, SS7, ISDN, CAS)

Incoming Calls

Total number of incoming calls coming into a specific channel group over a period of time set in the 'Stats Frequency' field

Incoming Answered Calls

Total number of incoming calls answered on a specific channel group over period of time set in the 'Stats Frequency' field

Outgoing Calls

Total number of calls going out of a specific channel group over a period of time set in the 'Stats Frequency' field

Outgoing Answered Calls

Total number of outgoing calls answered on a specific channel group over a period of time set in the 'Stats Frequency' field

Average Hold Time for Answered Calls

The average length of time between the moment a caller gets connected till the time the call is released

Total Channels in Channel Group

The number of channels that are configured for a specific channel group

Channels in Dialing State

The number of channels that are in a dialing state at that moment in the channel group selected.

Channels in Answered state

The number of channels that are in an answered state at that moment in the channel group selected.

Channels in Disconnecting state

The number of channels that are being disconnected at that moment in the channel group selected.

Channels in blocked state

The number of blocked channels that are in an answered state at that moment in the channel group selected.

Channels in Idle state

The number of idle channels at that moment in the channel group selected

Channels in Out of Service state

The number of channels that are Out of Service in the channel group selected