Thread follow up. Please feel free to comment to observations.
Below are Digimap combinations, and test results made to the OBi110 ATA.
All calls were performed at the OBi100 phone port to PSTN# 1.800.555-1212 and OBiTALK# 200xxxxxx.
Modifications to the OBi110 OBiTALK Service Setting InboundCallRoute Digimap Configurations were made, with associated test call reference results as indicated, below:
{200xxxxxx>(MLi):Li},ph
Dial 1.800.555-1212, rings OBi110 Phone Port continually until answered, when OBi110 Line Port is not spare.
Dial 1.800.555-1212, rings OBi110 Phone Port continually until answered, if OBi110 Line Port is spare.
Dial ***9+9D OBiTALK number, call fails when OBi110 Line Port is not spare.
Dial ***9+9D OBiTALK number, call fails if OBi110 Line Port is spare.
{200xxxxxx>(MLi):Li},Li
Dial 1.800.555-1212, long pause, call completes OK.
Dial 1.800.555-1212, call fails if Line Port is spare.
Dial ***9+9D OBiTALK number, reach second dialtone. Re-enter 1.800.555-1212 on second dialtone to complete call OK.
Dial ***9+9D OBiTALK number, call fails if OBi110 Line Port is spare.
{200xxxxxx>(MLi):Li},Li,ph
Dial 1.800.555-1212 rings OBi110 Phone Port with two ring cycles, if call is not answered at the OBi110, call is passed automatically to the Line Port to complete OK.
Dial 1.800.555-1212 rings OBi110 Phone Port continually until answered, if OBi110 Line Port is spare.
Dial ***9+9D OBiTALK rings OBi110 Phone Port with one ring cycle, then second dialtone. Re-enter 1.800.555-1212 on second dialtone to complete call OK.
Dial ***9+9D OBiTALK rings OBi110 Phone Port continually until answered, if OBi110 Line Port is spare.
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{200xxxxxx>(MLi):Li},{ph}
Dial 1.800.555-1212, Long pause, continually rings OBi110 Phone Port when OBi110 Line Port is not spare.
Dial 1.800.555-1212, Long pause, continually rings OBi110 Phone Port if OBi110 Line Port is spare.
Dial ***9+9D OBiTALK number, call completes OK with OBi110 Line Port connected to a POTS line
Dial ***9+9D OBiTALK number, rings OBi110 Phone Port continually until answered, if OBi110 Line Port is spare.
{200xxxxxx>(MLi):Li},{Li}
Dial 1.800.555-1212, call completes OK
Dial 1.800.555-1212, call fails when OBi110 Line Port is spare.
Dial ***9+9D OBiTALK number, call fails if OBi110 Line Port is spare.
Dial ***9+9D OBiTALK number, long pause, reach second dialtone. Re-enter 1.800.555-1212 on second dialtone to complete call OK.
{200xxxxxx>(MLi):Li},{Li},{ph}
Dial 1.800.555-1212, call completes OK
Dial 1.800.555-1212, call fails when OBi110 Line Port is spare.
Dial ***9+9D OBiTALK number, long pause, reach second dialtone. Re-enter 1.800.555-1212 on second dialtone to complete call OK.
Dial ***9+9D OBiTALK number, call fails if OBi110 Line Port is spare.
Thanks again.
Side note: 1.800.555-1212 AT&T Toll Free Information Service: Recording states: AT&T Toll Free Information Service will be discontinued by AT&T on 01 June 2020.