Our Voip Asterisk Gateway is connected to our PABX and to Checkpoint Firewall NGX R60. In NGX the UDP ports(5060,6060 and from 10000 to 20000) are defined for outgoing and incoming traffic using SIP protocol. Dialling a number,the connection is established with the VOIP provider network, but when the correspondent answers the line is dropped. Is it a NAT problem? Or??
Thanks for the help
Raffaele
Thanks for the help
Raffaele