Commercial establishments and especially the large-scaled ones need sizeable audits to save themselves from overrunning telecom expenses. Many such times, the service provider gets to know that the firm issuing in-house scrutinizers and hence levy far too many technical charges as well .at times, this is against the pre-set terms and conditions, but then who knows so much in detail. (Perhaps a correct RPF can save you the trouble).
For residence connections, a service providing company can itself take the initiative of putting an audit firm in task or auditing software in place. Such software quickly reads if there is any gaffe in the billing structure, if the algorithm behind converting meter reading into money units is being adhered to, if the happy hour rates are being proposed truly and if there is any amount of fleecing done in the garb of technical jargons. Keeping all this in mind, the auditing firm or software finds out number of invoice subheads correctly and with alacrity.