I purchased 12 OBIHAI devices and intend to deploy branches in world wide.
Only problem, I am facing is hassle of Auto Attendance for Obihai to Obihai calls.
Thanks to Ron and Steward, I connected PABX and use single stage dialing.
However, when dialing other Obihai, I have to dial 20# after that hear auto attendant then press 1 to talk to that Obihai device.
Please let me know so that when I dial 20#, it rings phone of that Obihai device.