Howdy all! I am trying to setup the LCS communicating with SER and ASTERISK in the company I work for. I read the following tutorial: http://www.voip-info.org/wiki/view/MS+LCS+2005+%252F+SER+%252F+Asterisk+Inte... But there the author points the necessity of 2 LCSs, but I just couldnt grasp why the need of a second LCS. Could anyone who has already setup that give me a hint of why it is necessary a second LCS? I thought I could route LCS to communicated directly with SER. I tried to use only one LCS(one that uses TLS) but it didnt communicate with SER. Thanks in advance, Felipe Louback -- Master Student - Electrical Engineering Department Computer Engineering and Telecommunications Research Group Universidade Federal de Minas Gerais - Brazil "Come to me, all you who are weary and burdened, and I will give you rest." Matthews 11:28