Obihai OBi100 Administration Manual page 142

CallReturnDigitMaps Call Return is the service where the user can call the last
caller by dialing a star code (*69 by default). OBi device
implements this service by remembering the number of
the last caller in memory. However the stored
information does not include any dialing prefix to tell the
device which voice service to use to call back the last
caller. This list of digit maps serve the purpose of mapping
a caller's number to one that includes the desired dialing
prefix used exclusively for call return service.
Copyright 2010-2013 Obihai Technology, Inc.
For OBi202/OBi302 PHONE1:
{([1-9]x?*(Mpli)):pp},
{(<##:>):li},
{(<#:>):ph2},
{(<**70:>(Mli)):li},
{(<**82:>(Mbt2)):bt2},
{(<**81:>(Mbt)):bt},
{(<**8:>(Mbt)):bt},
{**0:aa},{***:aa2},
{(<**1:>(Msp1)):sp1},
{(<**2:>(Msp2)):sp2},
{(<**3:>(Msp3)):sp3},
{(<**4:>(Msp4)):sp4},
{(<**9:>(Mpp)):pp},
{(Mpli):pli}
For OBi202/OBi302 PHONE2:
{([1-9]x?*(Mpli)):pp},
{(<##:>):li},
{(<#:>):ph},
{(<**70:>(Mli)):li},
{(<**82:>(Mbt2)):bt2},
{(<**81:>(Mbt)):bt},
{(<**8:>(Mbt)):bt},
{**0:aa},{***:aa2},
{(<**1:>(Msp1)):sp1},
{(<**2:>(Msp2)):sp2},
{(<**3:>(Msp3)):sp3},
{(<**4:>(Msp4)):sp4},
{(<**9:>(Mpp)):pp},
{(Mpli):pli}
For OBi200/OBi300:
{([1-9]x?*(Mpli)):pp},
{(<##:>):li},
{(<**70:>(Mli)):li},
{(<**82:>(Mbt2)):bt2},
{(<**81:>(Mbt)):bt},
{(<**8:>(Mbt)):bt},
{**0:aa},{***:aa2},
{(<**1:>(Msp1)):sp1},
{(<**2:>(Msp2)):sp2},
{(<**3:>(Msp3)):sp3},
{(<**4:>(Msp4)):sp4},
{(<**9:>(Mpp)):pp},
{(Mpli):pli}
For OBi100:
{pli:(xx.)},
{sp1:(<**1>xx.)},
{sp2:(<**2>xx.)},
{pp:(<**9>xx.)}
For OBi110:
{pli:(xx.)},
{sp1:(<**1>xx.)},
{sp2:(<**2>xx.)},
{li:(<**8>xx.)},
{pp:(<**9>xx.)}
For OBi202:
{pli:(xx.)},
{sp1:(<**1>xx.)},
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