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B1 Extension Number Method
Dialing Examples
With the extension number method, the caller dials only the destination number of the called party to
call through PBXs at different locations.
Calling from Los Angeles to Chicago
To extension 301 via VoIP network
extension no.
Dial 301.
To local telephone 123-4567 via VoIP network through local PSTN
VoIP Gateway
trunk (CO line) access no.
Dial 802.
Calling from Chicago to Los Angeles
To extension 201 via VoIP network
extension no.
Dial 201.
To local telephone 456-7890 via VoIP network through local PSTN
VoIP Gateway
trunk (CO line) access no.
Dial 803.
PBX Connection Information
Leading Number
Remaining Digits
Card IP Address
60
Getting Started
Chicago PBX
PSTN trunk (CO line) no.
Dial 93.
Los Angeles PBX
PSTN trunk (CO line) no.
Dial 92.
Los Angeles Office
Extn.
FAX Extn.
2
5
2
2
200.45.11.35
phone no.
Dial 123-4567.
phone no.
Dial 456-7890.
Chicago Office
PSTN
Extn.
Access
92
3
7
2
199.176.64.41
FAX Extn.
PSTN
Access
6
93
2
7
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