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Ericsson MD-110 Serial Integration Guide
OL-1290-01
Chapter 1 Ericsson MD-110 Serial Integration
Integration Description
Integration Description
The Ericsson MD-110 integration uses a data link, which consists of an RS-232
serial cable connecting the phone system and the Cisco Unity server. The voice
messaging lines from the phone system connect to the analog voice cards in the
Cisco Unity server. The following illustration shows the required connections.
Figure 1-1 Connections Between the Phone System and Cisco Unity
The phone system sends the following information through the data link:
• The extension of the called party
• The reason for the forward (the extension is busy, does not answer, or is set
to forward all calls)
• The extension of the calling party (for internal calls) or the phone number of
the calling party (if it is an external call and the system uses caller ID)
Cisco Unity uses this information to answer the call appropriately. For example,
a call forwarded to Cisco Unity is answered with the personal greeting of the
subscriber. If the phone system routes the call to Cisco Unity without this
information, Cisco Unity answers with the opening greeting.
RS-232 serial cable
Analog lines
Cisco Unity server
55423
Phone system