Every mobile-user of this world is faced with two choices the moment they buy a new SIM – whether to opt for a pre-paid or for a post-paid connection. Apart from minor differences in call rates, the crucial difference is in the payment timing. Post-paid billing occurs at the end of every month, while the pre-paid billing occurs in real time. Naturally, then the telecom companies also have to adopt different ways to compute these two bills. They need someone to execute pre-paid telecom billing services and also postpaid telecom billing specialist services for them. OSS system solution vendors come into the picture here. Continue reading→