Telephony connector settings

A telephony connector identifies the IP address and ports that BlackBerry Mobile Voice System uses to send and receive SIP messages to and from a node in your telephony infrastructure. A telephony connector definition also includes parameters for call setup and phone number normalization. You configure telephony connectors through the MVS Console.

A telephony connector represents your organization's telephony infrastructure (for example, a PBX or a gateway) within the BlackBerry MVS environment. A telephony connector specifies the IP address and ports that BlackBerry MVS uses to connect to your telephony infrastructure for SIP communications as well as parameters required for call control.

Field

Description

Display Name

This field specifies the display name for the telephony connector.

Type

This field specifies the type of PBX.

IP Address

This field specifies the IP address of your organization's PBX.

Host Name

This field specifies the host name or FQDN of the PBX.

The default host name is the same as the IP address.

Line Port

This field specifies the UDP port number that the PBX listens on for SIP communications that are made on the behalf of a specific telephone extension within your organization. This is only required with some PBX types.

This port communicates with the line port that is specified on the Add MVS Server page.

The default port number is 5060.

Trunk Port

This field specifies the UDP port number that the PBX listens on for general SIP communications.

This port communicates with the trunk port that is specified on the Add MVS Server page.

The default port number is 6060.

Registration Timeout

This field specifies how frequently the BlackBerry Mobile Voice System registers the BlackBerry MVS Client with the PBX.

The default registration timeout limit for the BlackBerry Mobile Voice System is 1200 seconds.

Early Media Negotiation

Early Media Negotiation ensures that Cisco Media Termination Points (MTP) are able to convert between SIP Key Press Markup Language (KPML, RFC 4730) and RFC 2833 by using early media negotiation when a call is first initiated. Early Media Negotiation ensures that all calls use Session Description Protocol (SDP) early offer. Otherwise, SDP late offer is applied to all calls. Early offer may be required to force certain configurations of the Cisco Unified Communications Manager and MTPs to use DTMF properly.

Caller Identification Number

When PBX-initiated call direction is applied, the node initiates call setup of the media path to the BlackBerry device. The node must send the Caller Identification Number as the calling party number to identify that this is a BlackBerry MVS call.

Obtain this number from your organization's PBX administrator.

Optional ANI numbers available for identifying BlackBerry MVS calls

This field specifies the optional ANI numbers for your organization's PBX.

When the call direction for incoming calls or outgoing calls is set to PBX-initiated, when the MVS Session Manager starts a call, it sends the ANI number that is associated with the telephony connector as the Caller Identification Number to the PBX. In some cases, the Caller Identification Number is lost and the the PBX can use the optional ANI numbers to communicate with the BlackBerry MVS Client that the call is from the BlackBerry MVS.

Location

The Location feature provides phone number normalization. The feature translates the globally unique E.164 number starting with a plus sign (+) to a locally significant number by stripping the plus sign (+) and adding International Direct Dial (IDD) or National Direct Dial (NDD) access codes corresponding to the PSTN dial plan for the selected location.

Normalization is applied to the called number of outgoing external calls that start with a plus sign. The 'called number' refers to a called number sent from the MVS Session Manager to the PBX. 'Outgoing' means from the enterprise to the external network.

Use this feature when your organization's PBX does not support the plus sign or does not add the prefixes automatically.


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