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QSIG/DPNSS Phone System with Cisco EGW 2200 Integration Guide for Cisco Unity Connection 1.1
OL-8187-01
QSIG/DPNSS Phone System with Cisco EGW 2200 Integration Guide for Cisco Unity Connection 1.1
Integration Description
Figure 1 Connections Between a QSIG/DPNSS Phone System and Cisco Unity Connection
Call Information
The QSIG/DPNSS integration sends the following information with forwarded calls:
• The extension of the called party
• 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)
• The reason for the forward (the extension is busy, does not answer, or is set to forward all calls)
Cisco Unity Connection uses this information to answer the call appropriately. For example, a call
forwarded to Cisco Unity Connection is answered with the personal greeting of the user. If the phone
system routes the call to Cisco Unity Connection without this information, Cisco Unity Connection
answers with the opening greeting.
Integration Features
The QSIG/DPNSS integration with Cisco Unity Connection provides the following features.
VoIP
gateway
LAN
132956
Cisco EGW 2200
Q
SIG/DPNSS
p
hone system
V
QSIG or DPNSS signaling backhaul path
SIP signaling path
RTP (voice) path
QSIG or DPNSS
connection
C
Cisco Unity
Connection serv
er
Call forward to personal greeting
When an incoming call is routed to an unanswered extension, the
call is forwarded to the voice mail of the user. The caller then hears
the personal greeting of the user and can leave a message.
Call forward to busy greeting
When an incoming call is routed to a busy extension, the call is
forwarded to the voice mail of the user. The caller then hears the
busy greeting (if the user enabled it) and can leave a message.
Caller ID
Cisco Unity Connection receives caller ID information from the
phone system (if available). This information appears in the subject
line of the message in the desktop messaging application.
Easy message access
A user can retrieve messages without entering an ID. Cisco Unity
Connection identifies a user based on the extension from which the
call originated. A password may be required.