Asterisk + pfsense, Some calls dropped after 30 sec

ramous

Hi all,

I have a NAT Issue for my Asterisk behind my pfsense, i have checked all old related posts, but none helped me.
!!!
I have 4 SIP provider and without pfsense just with NAT in router config everything works fine.
!!!
and below my config:
my subnet (172.16.10.0/24) use Pfsense WAN address for internet 196.X.X.11

my asterisk (192.168.1.200) is natted through pfsense with VIP 196.X.X.10
1:1 NAT 196.X.X.10 – 192.168.1.200
Manual Outbound: 192.168.1.200 --- to any -- 196.X.X.10 with dynamic port.

Rules:
on WAN Interface rules no restriction to 192.168.1.200
on Server Interface rules no restriction for 192.168.1.200

with firewall optimization set to Normal: I get the issue of one way audio
with firewall optimization set to Conservative: some call work fine and some dropped after 30 sec

Need your Help Please.

ramous

Issue solved

Problem related to SIP ALG in the router which must be disabled.

in my case i have a cisco router, so I entred:
#no ip nat service sip tcp port 5060
#no ip nat service sip udp port 5060
and everything started working as expected.