I have an Alcatel IP-PBX and a MK RB750 just for connect to Telephony Provider.
I configured the RB750 properly "I guess" and the calls In and Out works, but the problem is when I want to transfer the call to other internal phone, when I do that I can't hear the voice of the destination.
I saw with Torch:
Firts the PBX make the connection
172.16.0.180:5056 - 10.208.26.20:5060
-
When I make a phone call, it's appear like this
172.16.0.141:35614 - 10.208.26.20:85951 -
When I transfer the call
172.16.0.142:35614 - 10.208.26.20:85952
172.16.0.141:35614 - 10.208.26.20:85951 (it is still connected)
I don't know why the first connect is still connected and obviously I can't hear but they can hear me
When transfer call to the first one phone I can hear again.
Here I write my configuration: check it please.
/ip firewall export
jan/01/1970 23:32:07 by RouterOS 6.0rc14
software id = 4VJ8-47ZL
/ip firewall filter
add chain=forward disabled=yes dst-address=172.16.0.128/25 dst-address-list=
"" src-address=10.208.26.20 src-address-list=""
add chain=input disabled=yes dst-address=10.208.26.20 src-address=
172.16.0.128/25
add chain=forward in-interface=ether1-gateway
add chain=input in-interface=ether1-gateway
add chain=input comment="default configuration" disabled=yes protocol=icmp
add chain=input comment="default configuration" connection-state=established
disabled=yes
add chain=input comment="default configuration" connection-state=related
disabled=yes
add action=drop chain=input comment="default configuration" disabled=yes
in-interface=ether1-gateway
add chain=forward comment="default configuration" connection-state=
established disabled=yes
add chain=forward comment="default configuration" connection-state=related
disabled=yes
add action=drop chain=forward comment="default configuration"
connection-state=invalid disabled=yes
add chain=forward dst-address=0.0.0.0 src-address=0.0.0.0
add chain=input dst-address=0.0.0.0 src-address=0.0.0.0
/ip firewall nat
add action=masquerade chain=srcnat out-interface=ether1-gateway src-address=
172.16.0.180 to-addresses=172.16.0.128/25
add action=dst-nat chain=dstnat dst-address=10.218.40.58 to-addresses=
172.16.0.180
/ip firewall service-port
set sip sip-direct-media=no
/ip address print
Flags: X - disabled, I - invalid, D - dynamic
ADDRESS NETWORK INTERFACE
0 ;;; default configuration
172.16.0.138/25 172.16.0.128 ether2-master-local
1 10.218.40.58/30 10.218.40.56 ether1-gateway
2 192.168.88.1/24 192.168.88.0 ether5-slave-local
/ip route print
Flags: X - disabled, A - active, D - dynamic,
C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme,
B - blackhole, U - unreachable, P - prohibit
DST-ADDRESS PREF-SRC GATEWAY DISTANCE
0 A S 0.0.0.0/0 10.218.40.57 1
1 ADC 10.218.40.56/30 10.218.40.58 ether1-gateway 0
2 ADC 172.16.0.128/25 172.16.0.138 ether2-master-l... 0
3 ADC 192.168.88.0/24 192.168.88.1 ether5-slave-local 0
/ip service print
Flags: X - disabled, I - invalid
NAME PORT ADDRESS CERTIFICATE
0 telnet 23
1 ftp 21
2 www 80
3 ssh 22
4 X www-ssl 443 none
5 X api 8728
6 winbox 8291
/ip firewall service-port print
Flags: X - disabled, I - invalid
NAME PORTS
0 ftp 21
1 tftp 69
2 irc 6667
3 h323
4 sip 5060
5061
5 pptp