I am facing a challenge from past 1 week. I have free asterisk freepbx server installed in oracle vm virtualbox. I created 3 extensions, 2 for softphones(x-lite & media5-phone) & 1 for cisco 7940g ip phone. Now extensions work well with softwares and i can call each other without any problems. But cisco ip phone fails to register as i can see in asterisk info peers as host unspecified. i can see this cisco ip phone ip address in asterisk info channel only.
When i run tcpdump i can see some information for this cisco phone ip as icmp udp port 49110/49111 unreachable.
Not sure where it is going wrong! Is it because we need to buy separate module for hardphones like cisco?
Appreciate your help. Thank you.