Is there any native app for Android FAX?

Question

I want to develop a FAX application.I searched on google and found some links ,applications for developing FAX apps on android.But I want to develop application using native app

Answer 1

If you research fax transmission protocols you will appreciate that simply recording sound is insufficient for the development of a working native fax application. Fax machines use a sound based handshaking procedure whose timing is totally reliant upon the efficent response over landlines that are switched by highly responsive systems. Check out www.spandsp.org on fax over VOIP for a detailed discussion. In any case, the reason you give for wishing to develop such an app is also flawed. Contrary to general public conceptions fax over the PSTN is NOT SECURE and can be tapped with a couple of wired clips and a laptop. If you wish to develop a secure method of transmitting data then encrypted email or instant messaging would be a simpler and more promising approach. Keep in mind that secure data transmission requires that both sender and recipient are using compatable protocols.