CHAPTER
5-1
Cisco VG248 Analog Phone Gateway Software Configuration Guide
OL-1209-02
5
Integrating Cisco CallManager with
Voice Mail Systems Using SMDI
Simplified Message Desk Interface (SMDI) defines how phone systems provide
voice mail systems with the information needed to intelligently process incoming
calls. It is an industry-standard signaling protocol that supplies calling and called
party identification and sets and clears Message Waiting Indicators (MWIs)
through an RS-232 serial connection.
Using SMDI and the VG248, you can integrate your existing voice mail systems
(such as Lyrix, Octel 200, Octel 250, Octel 300 and Octel 350) and legacy PBX
systems with Cisco CallManager.
These sections provide details about designing, installing, configuring, and
verifying this integration:
• Overview, page 5-2
• Choosing a Configuration Option, page 5-4
• Connecting the SMDI Links to the VG248, page 5-12
• Configuring VG248 SMDI Ports in Cisco CallManager, page 5-13
• Configuring SMDI Settings on the VG248, page 5-19
• Verifying and Troubleshooting the SMDI Connection, page 5-28
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