1-8
About the Vanguard 3400 Series
Applications
Figure 1-5. SIP IPPBX-based, Centralized Telephony Application for
Small/Medium Branch Offices
WAN
PSTN
Fax
Laptop
SIP IPPBX
Data Center
Small/Medium Branch Office
7300 Series
IPSec
IPSec
PRI
FXO
3460ASG
Analog
Phone
IP Telephone