May I apply your DFax Service with my existing fax number? If you want to keep your existing fax number, you have to apply call forwarding from Telecommunication Company to our fax line. Prev Next Related Post: How much time is needed to activate DFax service officially after I applied the service?Do you have trial version?How do I receive the Fax ?What is the difference between \"Fax to Email\" and \"Tradditional Fax\"?What is DFax ?