Created test environment: 3CX server, linksys 16 port switch, no DHCP - static IPs, GXW-4104, 3 PSTN lines, Granstream GSP-2020 (ext 101), BT-200 (ext-202). Set it up according to documentation, the rest of setting are default. Ext to ext call - OK. Incoming calls - OK - routed to 101 for now. Outging calls - just static instead of ringing. PSTN light on GXW is on. Dialed numebr does not ring. Server log shows that connection is made OK- "Created audio channel for Ln:10000@GSGateway(192.168.0.160:5008) w/Media server(192.168.0.1:7168)". Please help.