Bsnl has slashed giving free wings service to all it’s landline subscribers for 2months trial basis. After that one has to pay Rs.1099+gst for one year of service. So one get 2 month free service if not extending to paid service or Rs.1099+gst=Rs.1297 for 14months of service which is less than Rs.100 for unlimited calls. Sms is currently not supported on wings voip service. Also you need internet to make calls via wing service.
Another offer is for PSU/govt employees. Rs.599+gst=Rs.707 for 12 months of wings sip service. which comes to Rs.59 per month. Good for seperate pvt n public nos.
Last offer is for Stundents who can avail 20% discount on Rs.1099+gst which comes to Rs.1037 for 12months or Rs.87 per month.
Apple iphone user can have two numbers on their mobile with this wings voip service. Second wings voip no would work on gs wave app. So dual no without actually having the dual sim capability on any android or ios phone.