I am using GXW4008 and GXW4108 for my PBX needs to work with 3CX -IP-PBX solution. issues that I need support on : 1) When a user is dialling another internal user ( extension to extension calling ) the dialling is fast and it rings a bell immediately on the other end When a user is calling a PSTN network user on Landline phones or Mobile phones network through the GXW4108 gateway , the user has to wait a long time for the call to connect. Sometimes more then a minute too. At this time there is no DIALLING heard for Dial progress heard or indicated. The pause and silence is too long to make a user wait. If the call does not go through for any reason the user does not even come to know about the failure before a minutes waiting. 2) Some extensions have lot of call failures and some have mimnimum failures. Where should i start looking for configuration problems to resolve this . One Gateway or Server ? Pl. assist me in configuring the Gateway perfectly to resolve this issue.