NeoScreener does not dial out on analog lines. However, dialing from the Desktop Director works on the same lines.
You need to upgrade the Telos firmware of the Desktop Director.
It must be v2.01, and you probably have a v2.0 version or less.
In order to do this, you need to get an Eeprom from your Telos reseller, with the proper firmware.
Additionnally, you need to have the following minimum firmwares installed on the Telos 2×12 / Nx12 / Nx6 units:
Telos 2×12: v3.34
Telos Nx6, Nx12: v1.6.0rPlease refer to the Telos documentation to perform the firmware changes.