What is a GSM Gateway and Why You Need One

gsmgateway.in is a VoIP GSM Gateway provider that provides SIP Trunking services for call centres, hotels, small and large businesses that use a PBX or a virtual call centre that uses an Asterisk voip based predictive dialer like Vicidial or Goautodial for telemarketing sales, with voip rates as low as 1 cent per minute to India, Delhi, and Noida.