I have a customer that is a bank. They have an offsite and are having problems with the connection between the two sites. The local Telco is on strike. They had 4 of the management types out and couldn't figure out the problem, said that there was a problem with the banks equipment. If I make a 4 wire line cord can I tie the two Motorola UDS DU 170 modems togeather. If I take the transmitt to the recieve can I make sure that the customers equipment is fine.If we can make sure that the banks equipment is good, we will get the Telco(Telus) back. Thanks for your help