Hi All, I have a Dialogic based PBX, that uses an MSI station card to provide an analog extension to my desk phone. This MSI extension is sometimes used to connect to a standard external 56k modem to make outbound dialup calls to remote linux servers etc. Now I am wondering, if I can connect this, to a TDM400P FXO port, so I can have asterisk running within my PBX ? I can see tones, as being non-standard, but from the electrical point, if I can plug it in to a standard analog phone, it should work with fxo ?? Thanks Shahed