In our company we have implemeted Cisco Voip soulution. We have call manager 6.1 and cisco 2811 as VG and we have 2 telco for making calls. With one of the telco operators we have problem with number identification. When we recive calls the leading zeros are gone e.g 0704327811 we recive 704327811. How can i add this zero in front of incoming number in Cisco 2811 voice gateway not in the call manager. We use MGCP as protocol.