Yeastar Technology MyPBX U200, Administrator'S Manual

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MyPBX U200 Administrator's Guide
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Step 2: Create Callback number
Figure 6-65
Step 3: Create Callback Rules
You will need to create callback rules when the system should strip or add digits.
Figure 6-66
· Trunk Name
Choose the trunk with callback rules
· Strip digits from front
Define how many digits will be stripped from the call in number before the
callback is placed. For example, when you call from number 123456789 into
MyPBX, the caller ID is 0123456789, but you can only call 123456789
successfully from MyPBX trunk. You should configure number 0123456789 as
the call back number and strip 1 digit before the callback is placed
· Prepend before dialing
Define digits added before a callback number before the callback is placed. For
example, the call in number (Caller ID) is 123456789, MyPBX need to send
9123456789 to its trunk when call to this number. You should configure
123456789 as the call back number and add 9 before the callback is placed. You
can add „w‟ for analog trunks for some delay too
6.7.5 DNIS Settings
DNIS (Dialed Number Identification Service) is a telephone service that
identifies for the receiver of a call the number that the caller dialed