Help Please with 3cx No Voice

[kevinmana]

Hi All,

I am new with 3cx pbx system. Here is my LAN: Internet -> mikrotik -> LAN

mikrotik : 192.168.100.1
3cx server IP : 192.168.100.184
Port: 5000,5060,5090,10000-20000
Phone Extention: 100 at Home, 200 at Laptop used from outside my LAN/Home

Here is my mikrotik filter and nat
/ip firewall filter
add action=accept chain=forward disabled=no dst-address-list=protected_host \
dst-port=5060,5090,10000-20000 protocol=udp
add action=accept chain=forward disabled=no dst-address-list=protected_host \
dst-port=5060,5090,5000 protocol=tcp

/ip firewall nat
add action=dst-nat chain=dstnat disabled=no dst-port=10000-20000 in-interface=\
Internet protocol=udp to-addresses=192.168.100.184
add action=dst-nat chain=dstnat disabled=no dst-port=5060,5090 in-interface=\
Internet protocol=udp to-addresses=192.168.100.184
add action=dst-nat chain=dstnat disabled=no dst-port=5060,5090,5000 \
in-interface=Internet protocol=tcp to-addresses=192.168.100.184
add action=masquerade chain=srcnat disabled=no src-address=192.168.100.0/24

SIP 5060/5061 disable

From 3cx pbx server I did firewall checker and all passed. ext 100 and 200 success registered.

When i try to call from outsite my home using ext 200 to ext 100 or ext 999, i can not hear any voice.

Please some one help me what i miss in here.

Thank you

 

[complex1]

Hi,

I am not familiar with mikrotik but what I am missing is Port Forwarding of the RTP (audio) ports 9000-9199 UDP.

SIP 5060/5061 are disabled and the firewall checker passes all tests?????

Please read:
http://www.3cx.com/blog/docs/ports-used/
http://www.3cx.com/docs/firewall-router-configuration-voip/

 

[leejor]

The fact that you are not hearing audio at the remote end would suggest that the problem may be at that end. Normally, for a single device, no port forwarding is required at the remote end. I find that the more "complicated" the router in use, the more chance of problems If there is a firewall that is blocking some ports, then that may be the issue.

Here is a list of all of the required ports at the 3CX PBX end...

http://www.3cx.com/blog/docs/ports-used/

And some additional reading...

http://www.3cx.com/docs/firewall-router-configuration-voip/

 

[craigreilly]

Mikrotik works quite well - as long as the proper ports are open as mentioned by others. Right off the bat I see the 9k range was not opened.