Draytek Vigor IPPBX 2820 Series User Manual page 180


Dial 201 (the SIP trunk number in VigorIPPBX 2820) from 202 in IPPBX 3510. You
will hear a voice reply first. Then, dial 102 and wait for a moment to communicate with
102.

Dial 101 (the SIP trunk number in VigorIPPBX 2820) from 202 in IPPBX 3510. Then,
dial 102 and wait for a moment to communicate with 102.

Set one digit map rule in VigorIPPBX 2820. Make all the dialing number with prefix
number "1" will be dialed out from SIP trunk 1. After finished the digit map setting,
simply dial 102 from 202 in IPPBX 3510, both extensions can communicate with each
other. Such method will be easier than above two methods for only one step must be
taken.
As for the configuration of Digit Map, please open IPPBX >> DialPlan and choose Digit
Map.
Check Enable to activate the setting; type 1 in the field of Match Prefix; and choose VoIP
1(SIP trunk 1) as Route. After these, phone number with prefix 1 will be dialed out by VoIP
1.
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VigorIPPBX 2820 Series User's Guide