I have a 3527 gateway connected to the TANDBERG. When a receive a call from ISDN network, the first channel is open but the others channels not open. The Telco say that later connected first channel it need receive number of other channels and this number that it receive of my gateway are incorrect. I don't understand because this number that Telco say, don't are configured in my gateway or TANDBERG. If i receive several calls of 64K the same time, it functions.
Can you help me ?