Generally speaking, there are two kinds of modems, broadband modems and 56K modems. Broadband modem is an ADSL modem, which has no fax software and can only be used for surfing the Internet. The 56K modem has fax function, so if you want to send and receive faxes by computer, you must have a 56K modem. The recommended model is Tengda 5630P, which is cheap and stable, and supports caller ID and voice functions.

Speaking of modems, let's talk about fax software. Not to mention the fax software that comes with xp and win2003. The function is too weak to support caller ID and voice prompt. If the enterprise uses it, there is no minimum signature and seal approval function, so it can't be used online. It is best to use special fax software. There are many in China, such as tomifax, Eastfax, Dreamfax, fax and so on. I recommend Da Le FaxCenter used by our company. You can send and receive faxes through the webpage /email /MSN, sign and seal the group call for approval, display voice prompts, and most importantly, you have a free version of this software, which is not quite like our company's fax. It is enough to use the free version.

If you don't want to buy a modem, you can only choose online fax and charge it like a mobile phone. If you want to receive this function, you need to pay a monthly rent, which is not recommended. Security and practicality are not as good as fax software.