DTMF

Your organization's telephony environment must be able to perform the following actions:

• Detect and intercept DTMF tones from the cellular call leg between the PBX and BlackBerry® devices
• Notify the BlackBerry MVS Server of the DTMF tones using KPML notification
• Emit DTMF tones into the audio path when the BlackBerry® Mobile Voice System requests them
• Send DTMF tones that are at least 100 milliseconds in duration to devices

If your organization's telephony environment includes components, such as a voice mail server, that receive DTMF tones from the BlackBerry MVS, the telephony environment must be able to present the DTMF tones in the correct format (for example, RFC 2833, in-band media, H.323).

Caller Identification Number, ANI number (Calling party)

• When you use PBX-initiated call direction, you must configure a Caller Identification Number for each telephony connector. The PBX must use the Caller Identification Number as the calling party number when the PBX calls the BlackBerry device. The BlackBerry MVS Client compares the last six digits of the calling party number with the last six digits of the Caller Identification Number. If they match, the BlackBerry MVS Client treats the call as a BlackBerry MVS call. Ensure that any digit manipulation of the Caller Identification Number preserves the last six digits in the calling party number sent to the BlackBerry device.
• If your organization has a hunt group that is configured in the PBX with multiple outgoing trunks, and each trunk has its own ANI number, you must type each ANI number in the MVS Console.

DID/DDI number (Called party)

• If you configure your organization's BlackBerry MVS for BlackBerry device–initiated calling, you must configure a DID/DDI number in your organization's telephony environment. You configure the DID/DDI number in the MVS Console for each BlackBerry MVS Server. The DID/DDI number is used to provision the user accounts that you configured for the device.
• In the class of service, make sure that you choose BlackBerry Smartphone > PBX for users that you want to use BlackBerry device–initiated calling. You must verify that a call that arrives at the DID/DDI number prompts the telephony environment to send a SIP invitation to the BlackBerry MVS over the SIP connection that has been configured between the telephony environment and the BlackBerry MVS.

Voice mail server (if necessary)

If your organization uses solicited voice mail, the BlackBerry MVS requires a SIP line to your organization's voice mail server, which must be compliant with RFC 3842, so that a MWI displays on users' devices.