
110 Chapter 6 Setting up VoIP trunks for outgoing calls
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Figure 32 Calling into a remote node from a public location
Call process
Based on the figure shown above, this is how the call would progress:
1 A home-based employee in Santa Clara wants to call someone in Ottawa, so they dial into the
local Business Communications Manager network using the access code for an unsupervised
trunk (not VoIP trunks) and the destination code and DN for the person they want to reach on
System B.
2 When the call is received from the public network at System A (Santa Clara), the system
recognizes that the received number is not a local system number. The call is received as a
public call.
3 System A has a route and destination code that recognizes the received number and routing
code as belonging to the route that goes to System B (Ottawa). System A passes the call to
System B over a dedicated trunk, in this case, a VoIP trunk. This call is now designated as a
private call type.
OttawaSanta Clara
IP network
PSTN
Gateway destination digit: 2
Route 022 (VoIP)
DN type: Private
Destination code: 2, using route 022
Absorb length: 0
Ensure VoIP trunk is set up with remote
filters
DN 2244
Target line XXX recognizes 2244
DN 2244 assigned with target line XXX
Dialout:
2244
Gateway: 2
Gateway: 3
DN 3322
Dialin:
XXX-2244
Remote gateway set
up to Santa Clara
CDP system code for
Ottawa:2
dedicated VoIP trunk private network
Dialin:
XXX-2244
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