New Delhi, March 14 :     DSS Mobile Communications Ltd, which provides e-mail links through its paging services in Calcutta and six other cities, has decided to levy a charge on the service. The company, which offers paging services under the brand name Mobilink, plans to introduce a minimum charge of Rs 50-100 for its internet paging service, currently available free. The company introduced the internet paging service earlier this year in Calcutta, Chennai, Mumbai, Bangalore, Ahmedabad, Pune and Hyderabad. To send an internet paging message, a caller has to log on to the Mobilink web site, http://www.mobilinkindia.com, key in the subscriber's city, pager number, type out the message and send it. The message is sent to the subscriber's pager anywhere in the world, through the internet. According to Dilip Pall, director sales and marketing Mobilink, 'Internet paging is a cost effective medium of communication. Senders can save on the long distance call charges. We have also tied up with private internet service providers (ISPs) and Videsh Sanchar Nigam Ltd (VSNL) to offer e-mail notifications on pagers. Soon there will be many more web-based messaging services catering to a cross section of users.' Simultaneously, the company also plans to offer specialised value added services to corporates.