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Cisco IP Telephony Network Design Guide
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Chapter 10 Migrating to an IP Telephony Network
Cisco Digital PBX Adapter (DPA)
Using the Multiple Integration Mode
If your system requires more than the hybrid integration mode provides, you
might want to add multiple DPA 7630 systems to your network (see
Figure 10-12).
Figure 10-12 Multiple Integration Using Multiple DPA 7630 Systems
PIC
DPA 7630
in hybrid mode
DPA 7630 in
simple mode
IP
(Skinny)
PIC
PSTN
Gateway
Cisco
CallManager
IP telephony network Legacy PBX
Lucent
PBX
Octel
Voice Mail
49088
IP IP IP
V
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