Hi, I have a CCM 5.1 cluster with two voice gateways at site A and one voice gateway at site B. The first gateway of site A uses E1 interface and have been working fine. Now, I'm configuring the second gateway with a SIP provider. In the future I will retire the E1 gateway. I want to configure the SIP connection at gateway instead the CCM because the SRST. I have tried some configurations without success. Does anyone can help me?