As Comfone wVoIP allows to GSM operators to offer to their end-users (subscribers) a uniqe wVoIP satisfaction, the value propositions can be seen from both sides.

For Operators:

• Full service
  Allows the operator to act as a full service operator with a complete product portfolio.
  
• No investment
  No investment in new technology is required – just a simple addition of a new roaming relation.
  
• Short time-to-market
  Comfone wVoIP solution may be offered to the market without any changes to the existing network.
  
• Standards
  The service conforms to existing GSM and Internet standards.
  
• Customer relationship
  Because the same handset, the same SIM card and the same mobile number (MSISDN) are offered for both GSM and wVoIP services, the existing customer relationship is strengthened.
  
• Customer satisfaction
  wVoIP addresses the increasing sensitivity of end-users to roaming costs and their desire for a truly converged fixed and mobile communication service experience.
  
• Less risk
  The end-user service is completely under the control of the mobile operator.
  
• Increased roaming coverage
  Any location with a public or private WLAN hotspot is a potential roaming destination.
  
• Future
  Forward looking approach to exploit new revenue streams before losing roaming revenues.
  

For end-users (Subscribers):

• Full mobility
  The combination of wVoIP and GSM allows increased coverage worldwide.
  
• Choice
  The choice of service usage (VoIP or GSM) remains in the hands of the subscriber.
  
• Lower calling costs
  Lower roaming costs with Comfone wVoIP usage, without losing the security (SIM-based) and convenience of GSM.
  
• One number
  Only one existing mobile number (MSISDN) is required for both wVoIP and GSM.
  
• One handset
  One dual mode handset to access both GSM and wVoIP services.
  
• One bill
  wVoIP and GSM roaming costs are given on the same bill.
  
• Easy client - easy usage
  The client is delivered on the dual mode handset
  and allows voice calls and SMS.