Frequently Asked Questions


I want to buy, how can I pay?

A: You can pay through credit card: Mastercard, Visa, American Express, Discover. You can also pay through Western Union, Google Checkout, wire transfer and Paypal. Please email us at sales@nxtvox.com if you want to use non-credit card payment methods.


Do you have warranty?

A: Yes NXTVOX has 2 years warranty.


I got a defective card, what to do?

Please send it back to us at. As soon as we receive the defective card, we will send you back a new card,shipping is free. Please ship it at the following address:








I have a billing problem. What do I do?


A: If you have any issue with your bills or charges, please email us at sales@nxtvox.com


I ordered a NXA800P 8 port card but it only has 4 ports at the back. Where are the other 4 ports?

A: A special cable is required in order to fully utilize all ports of the NXA800P. View Cable Split Diagram


Asterisk cannot detect the NXA800P card. Is my card defective?


A: No, your card is not defective. You need to download this Zaptel driver (1.4.4 or 1.2.19) so that Asterisk can detect your card properly.


Where can I find the manual for installing the NXA800P card?


A: The manual may be downloaded here for your reference.