PROCESS OF ONE RUPEE COIN BOX

STEP1: Pick up the Handset

STEP2: Insert the coin

STEP3:When you get a busy tone, hang-up the receiver

STEP4:  Finish off the conversation and hang-up the receiver

STEP5: During the conversation, in case of a local call, (assume the duration is  of 60     sec), when 45 as are completed

STEP6: It should prompt you to insert another coin to continue by giving beeps

STEP7: In the above scenario, if another coin is insert 60 sec will be added to the counter.

STEP8: In the TC5 scenario, if you don't insert one more coin.The call gets ended.

STEP9: Pick up the receiver. Insert appropriate one rupee coin; Dial the number after hearing the ring tone. Assume it got connected and you are getting the ring tone. Immediately you end up the call.

STEP10:The inserted one rupee coin comes out of the exit door.