# Dial-Peer Configuration

The Dial-Peer Configuration dialog box provides the dial-peer information for the interface.

## Procedure

1. In the rear view, right-click the LEDs of FXS ports available in the CMM submodule.

2. Select a row and then click Configure.

3. Select Dial-Peer Configuration from the Category list.

The following information appears:

> Tag (dialCtlPeerCfgId)

> Destination-pattern (dialCtlPeerCfgOriginateAddress)

> Answer-address (dialCtlPeerCfgAnswerAddress)

> Speed (dialCtlPeerCfgSpeed)

> Information Type (dialCtlPeerCfgInfoType)

> Trap (dialCtlPeerCfgTrapEnable)

> Permission (dialCtlPeerCfgPermission)

> Inactivity Timer (dialCtlPeerCfgInactivityTimer)

> Minimum Duration (dialCtlPeerCfgMinDuration)

> Maximum Duration (dialCtlPeerCfgMaxDuration)

> Call Timeout (dialCtlPeerCfgCarrierDelay)

> Call Retries (dialCtlPeerCfgCallRetries)

> Call Retry Delay (dialCtlPeerCfgRetryDelay)

> Call Failure Delays (dialCtlPeerCfgFailureDelay)

> Pots Configuration

> Session-target (cvVoicePeerCfgSessionTarget)

> Digits prefix (cvVoicePeerCfgDialDigitsPrefix)

> DID Call (cvVoicePeerCfgDIDCallEnable)

> Cas Group (cvVoicePeerCfgCasGroup)

> RegisterE164 (cvVoicePeerCfgRegisterE164)

> Forward Digits (cvVoicePeerCfgForwardDigits)

Click Dial Peer Statistics to display the statistics for the selected dial-peer.

### Tag (dialCtlPeerCfgId)

Identifies a single peer that has a unique value.

There are several entries in this table for one peer that define different ways of reaching this peer. Thus, there are several entries in this table with the same value of dialCtlPeerCfgId. Multiple entries for one peer are used to support multilink as well as backup lines. Several entries for one peer must have the same value of dialCtlPeerCfgId, but different ifEntries and thus different values of ifIndex.

### Destination-pattern (dialCtlPeerCfgOriginateAddress)

Call address at which the peer is called.

It is similar to a set of characters following 'ATDT ' or the 'phone number' included in a D channel call request.

The structure of this information is switch type specific. If the value is a zero length string, no address information is required for reaching the peer as in the case of leased lines.

### Answer-address (dialCtlPeerCfgAnswerAddress)

Calling party number information element.

For example, the information element passed in an ISDN setup message by a PBX ( Private Branch Exchange) or switch, for incoming calls.

This address identifies the peer. If this address is either unknown or identical to dialCtlPeerCfgOriginateAddress, the value is a zero length string.

### Speed (dialCtlPeerCfgSpeed)

The desired information transfer speed in bits per second when calling this peer. It is the detailed media specific information.

For example, information type and information transfer rate for ISDN circuits, is found using speed details. If the transfer speed used is unknown or the default speed for this type of interface is unknown, the value is zero.

### Information Type (dialCtlPeerCfgInfoType)

The information transfer capability used when calling this peer.

Values are:

other (1) |
speech (2) |
unrestrictedDigital (3) | Represents 64k/s data.
unrestrictedDigital56 (4) | Represents 56k rate adaption.
restrictedDigital (5) |
audio31(6) | Represents 3.1 kHz audio.
audio7 (7) | Represents 7 kHz audio
video (8) |
packetSwitched (9) |
fax (10) |

speech (2) refers to a non-data connection, whereas audio31 (6) and audio7 (7) refer to data mode connections.

### Trap (dialCtlPeerCfgTrapEnable)

Indicates whether dialCtlPeerCallInformation and dialCtlPeerCallSetup traps needs to be generated for this peer.

### Permission (dialCtlPeerCfgPermission)

Applicable permissions.

The following are the permissions:

originate (1) |
answer (2) |
both (3) | Originate & answer
callback (4) | Either rejects the call and then calls back, or uses the 'Reverse charging' information element if it is available. Note: callback(4) is supposed to control charging, not security, and applies to callback prior to accepting a call. Callback for security reasons is handled using PPP callback.
none (5) |

### Inactivity Timer (dialCtlPeerCfgInactivityTimer)

The connection is automatically disconnected if it carries no useful data for a specified time period, in seconds.

Useful data in this context refers to forwarding packets, including routing information. It excludes the encapsulator maintenance frames.

A zero value means the connection is not automatically taken down due to inactivity, which implies that it is a dedicated circuit.

### Minimum Duration (dialCtlPeerCfgMinDuration)

Minimum duration of a call in seconds, starting from the time the call is connected until the call is disconnected.

This to facilitate charging. In most countries charging applies to units of time, which is matched as closely as possible.

### Maximum Duration (dialCtlPeerCfgMaxDuration)

Maximum call duration in seconds. Zero means 'unlimited'.

### Call Timeout (dialCtlPeerCfgCarrierDelay)

The call timeout time in seconds. A default zero value means that the call timeout as specified for the media in question will apply.

### Call Retries (dialCtlPeerCfgCallRetries)

The number of attempts that can be made to an inaccessible number or to the number which refuses the call. Zero means no bound.

### Call Retry Delay (dialCtlPeerCfgRetryDelay)

The time in seconds between call retries if a peer cannot be reached. A zero value means that call retries are made without any delay.

### Call Failure Delays (dialCtlPeerCfgFailureDelay)

The time in seconds after which call attempts are placed again after a peer is unreachable, i.e. after dialCtlPeerCfgCallRetries unsuccessful call attempts.

A zero value means that a peer is not called again after dialCtlPeerCfgCallRetries unsuccessful call attempts.

Pots Configuration

### Session-target (cvVoicePeerCfgSessionTarget)

Specifies the session target of the peer.

Session Target definition:

The session target has the syntax used by the IETF service location protocol.

The syntax is as follows:

mapping-type:type-specific-syntax

The mapping-type specifies a scheme for mapping the matching dial string to a session target.

The valid mapping type definition for the peer is as follows:

Mapping type definition:

loopback

Syntax:

loopback:where

In the loopback syntax 'where' string is defined as compressed or uncompressed.

compressed means loopback is performed on compressed voice as close to the CODEC which processes the data.

uncompressed means loopback is performed on the PCM or analog voice as close to the telephony endpoint.

There are two loopback cases. They are as follows:

Local loopback case:

uncompressed | The PCM voice coming into the DSP is turned around and sent back out, allowing testing of the transmit to receive paths in the telephony endpoint.
compressed | The compressed voice coming out of the CODEC is turned around on the DSP module and fed back into the decompressor through the jitter buffer. In addition to the telephony endpoint, this tests both the encode and decode paths without involving data paths or packet handling on the host router.

Remote loopback case:

compressed | RTP packets received from the network are decapsulated and passed to the DSP board. Instead of feeding these into the CODEC for decompression, they are immediately sent back to the session application as if they originated locally and were compressed.
uncompressed | In addition to the above, the voice samples are sent all the way through the CODEC and then turned around instead of being sent to the telephony endpoint.

### Digits prefix (cvVoicePeerCfgDialDigitsPrefix)

The prefix of the dial digits for the peer. The dial digits prefix is sent to telephony interface before the real phone number when the system places the outgoing call to the voice encapsulation peer over telephony interface.

### DID Call (cvVoicePeerCfgDIDCallEnable)

Enables or disables the DID call treatment for incoming DNIS digits.

true means treat the incoming DNIS digits as if the digits are received from DID trunk.

false means disable DID call treatment for incoming DNIS digits.

### Cas Group (cvVoicePeerCfgCasGroup)

The CAS group number of a CAS capable T1 or E1 that is in the dialCtlPeerCfgLowerIf of RFC2128. It is set to a valid CAS group number if the dialCtlPeerCfgLowerIf contains a valid ifIndex for a CAS capable T1 or E1. The value is set to -1 before the value of dialCtlPeerCfgLowerIf of RFC2128 is changed.

Value range is 0 to 23 for T1 and 0 to 30 for E1. -1 means the Cas Group is disabled.

### RegisterE164 (cvVoicePeerCfgRegisterE164)

Specifies whether the E.164 number specified in the dialCtlPeerCfgOriginateAddress field of the associated dialCtlPeerCfgTable entry be registered with the router gatekeeper.

### Forward Digits (cvVoicePeerCfgForwardDigits)

The number of dialed digits to forward to the remote destination in the setup message.

Values are:

0 to 32 | Number of right justified digits to forward.
-1 | 0
-2 | Forward extra digits.
-3 | Forward all digits.