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: What is the difference between \"Fax to Email\" and \"Tradditional Fax\"?What is DFax ?Can I send a fax online?Can I choose the fax number?How much time is needed to activate DFax service officially after I applied the service?