Just installed a TDE100 and attached a TVA200 VPS Voicemail system to ports 15 & 16 of a DLC16 digital card: cabled port 15 D1/D2 to pins 1 & 4 of TVA200 modular port, as well as port 16 D1/D2 to pins 1 & 4 of the second TVA200 modular port. Set the ports on the DLC16 to DPT-VM, ran the Quick Setup from the TVA Management Console and can't get past "receiving extensions: Error receiving extensions and first names." I am told this indicates a cabling problem. Tested both cables with digital handsets and they work perfectly. Panasonic says this should indicate proper cabling. Any help much appreciated!