Manual
97
NX is capable of connecons over analog telephone lines with a modem (sold separately). This mode emulates the
funcon of Comrex POTS codecs, which have been used for years to deliver high quality audio over normal, analog dial-
up telephone lines. This mode provides for a point-to-point connecon between the codecs. No Internet access is used,
and the call is placed directly from one NX (or legacy codec) to the other. A POTS Zoom modem is available for purchase
to use with your NX.
In the current rmware, NX is capable of connecng over dial-up phone lines to ACCESS Codecs, Comrex Matrix Codecs,
Comrex BlueBox Codecs, and Comrex Vector Codecs.
The legacy codecs (Matrix, Vector or BlueBox) must be congured for operaon in , which will allow
full-delity (up to 15 kHz) connecons. Voice Mode is not supported by NX. All 4 Contact closures and ancillary data
supported by legacy codecs are not supported by NX.
When dening any outgoing connecon, a prole must be assigned to it. For POTS Codec compable connecons, the
factory default POTS prole should work best.
To use NX on POTS, insert the Zoom USB POTS modem into one of the USB ports. Connect the phone cord to a normal,
analog telephone jack.
Once the POTS modem is installed, POTS Modem will appear as a new network opon in the menu.
This network opon will remain in the menu unless it is deleted by the user.
To iniate calls from NX, simply create a remote connecon with a telephone number as an address, rather than an IP
address, in themenu. You must designate a POTS-based prole for this remote.