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Chapter 10 Migrating to an IP Telephony Network

Cisco Digital PBX Adapter (DPA)

10-20

Cisco IP Telephony Network Design Guide

78-11103-03

The following list summarizes the pros and cons of the type D system:

Cisco Digital PBX Adapter (DPA)

The Cisco Digital PBX Adapter 7630 (DPA 7630) enables you to integrate

Cisco CallManager systems with Octel voice mail systems, which might also be

connected to a Lucent Definity PBX system. You might want to do this if you have

these existing third-party telephony systems in your network, and you want to

continue to use them along with your Cisco IP telephony system.

For example, you can ensure that features such as message waiting indicators

(MWI) for Octel voice messages are properly set on Cisco IP Phones (connected

to Cisco CallManager) and traditional telephony phones (connected to Lucent

PBX systems).

Using the DPA 7630, you can integrate the following systems:

• Cisco CallManager

• Octel 200 and 300 voice messaging systems (using APIC integration)

• Octel 250 and 350 voice messaging systems (using FLT-A/PIC-A integration)

• Lucent Definity G3 PBX systems

The following sections provide you with an overview of the DPA 7630 and its

interactions with the other components in traditional and IP telephony networks:

• Understanding How the DPA 7630 Works, page 10-21

• Choosing an Integration Mode, page 10-22

Pros Cons

• IP users get access to voice

messaging as they migrate from

the PBX.

• Relatively inexpensive to

implement

• Same voice feature shortfall as

type A systems

• No voice mail interaction between

voice messaging and Cisco uOne

• Ideally, DID (DDI) trunks would

be moved from PBX to IP network

to follow the users. Otherwise,

some features might be lost.

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