"For appointments, patients can call 9266092660, select the department, give his or her choice of doctor, if any, and dates," Dr Deepak Aggarwal, head of the IT cell at AIIMS, said.
The service was put to test since Aug 15 and has received a good response.
An online system which helps people book appointments was kept optional after it was introduced two months ago, has been made mandatory from Sept 1 for all patients who want to see doctors in the OPD. Officials say that this option helps the management manage patients.
Apart from this the hospital also has a tatkal option for walk-in patients.