Products & Services                                       Switching System       FETEX-150         System Engineering   Installation     *System Design *Data Generation(DGN) *Testing & Commissioning *Software Support *Operation * Maintenance (O&M)   *Installation Design *Physical Installation Fetex 150               Operation & Maintenance Services         Maintenance Services for Telephone Exchanges providing Maintenance Services and Support for FETEX-150 Exchanges (Currently Servicing 1.3 million lines)               Mandatory Services N Help Desk N Emergency Support N Hardware Support N Software Support N Web-Tool   Optional Services N Training N Preventive Support N On-Site Support