Look the report up, the wachgard pass
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE2-00, protocol=50795/udp, src_ip=10.0.0.253, src_port=50795, dst_ip=192.168.2.254, dst_port=50795, src_intf=1-Trusted, dst_intf=3-Optional-2, rc=100, pckt_len=43, ttl=98
2013-06-13 17:46:23
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE2-00, protocol=50795/udp, src_ip=10.0.0.253, src_port=50795, dst_ip=192.168.2.254, dst_port=50795, src_intf=1-Trusted, dst_intf=3-Optional-2, rc=100, pckt_len=43, ttl=98
2013-06-13 17:46:33
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE2-00, protocol=50795/udp, src_ip=10.0.0.253, src_port=50795, dst_ip=192.168.2.254, dst_port=50795, src_intf=1-Trusted, dst_intf=3-Optional-2, rc=100, pckt_len=43, ttl=98
2013-06-14 05:46:59
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE-00, protocol=50795/udp, src_ip=192.168.2.254, src_port=50795, dst_ip=10.0.0.253, dst_port=50795, src_intf=3-Optional-2, dst_intf=1-Trusted, rc=100, pckt_len=43, ttl=95
2013-06-14 05:47:08
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE-00, protocol=50795/udp, src_ip=192.168.2.254, src_port=50795, dst_ip=10.0.0.253, dst_port=50795, src_intf=3-Optional-2, dst_intf=1-Trusted, rc=100, pckt_len=43, ttl=95
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE-00, protocol=1720/tcp, src_ip=192.168.2.254, src_port=4151, dst_ip=10.0.0.253, dst_port=1720, src_intf=3-Optional-2, dst_intf=1-Trusted, rc=100, pckt_len=44, ttl=95, pr_info=offset 6 S 5780 win 32
2013-06-13 11:31:02
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE-00, protocol=1720/tcp, src_ip=192.168.2.254, src_port=4152, dst_ip=10.0.0.253, dst_port=1720, src_intf=3-Optional-2, dst_intf=1-Trusted, rc=100, pckt_len=44, ttl=95, pr_info=offset 6 S 1488 win 32
2013-06-13 11:31:14
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE2-00, protocol=1720/tcp, src_ip=10.0.0.253, src_port=4161, dst_ip=192.168.2.254, dst_port=1720, src_intf=1-Trusted, dst_intf=3-Optional-2, rc=100, pckt_len=44, ttl=98, pr_info=offset 6 S 20515 win 32
2013-06-13 11:31:47
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE-00, protocol=1720/tcp, src_ip=192.168.2.254, src_port=4153, dst_ip=10.0.0.253, dst_port=1720, src_intf=3-Optional-2, dst_intf=1-Trusted, rc=100, pckt_len=44, ttl=95, pr_info=offset 6 S 55423 win 32
2013-06-13 11:32:29
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE2-00, protocol=1720/tcp, src_ip=10.0.0.253, src_port=4162, dst_ip=192.168.2.254, dst_port=1720, src_intf=1-Trusted, dst_intf=3-Optional-2, rc=100, pckt_len=44, ttl=98, pr_info=offset 6 S 20040 win 32
2013-06-13 11:32:31
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE-00, protocol=1720/tcp, src_ip=192.168.2.254, src_port=4154, dst_ip=10.0.0.253, dst_port=1720, src_intf=3-Optional-2, dst_intf=1-Trusted, rc=100, pckt_len=44, ttl=95, pr_info=offset 6 S 43567 win 32
2013-06-13 11:33:17
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE-00, protocol=1720/tcp, src_ip=192.168.2.254, src_port=4155, dst_ip=10.0.0.253, dst_port=1720, src_intf=3-Optional-2, dst_intf=1-Trusted, rc=100, pckt_len=44, ttl=95, pr_info=offset 6 S 31967 win 32
2013-06-13 11:33:44
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE2-00, protocol=1720/tcp, src_ip=10.0.0.253, src_port=4163, dst_ip=192.168.2.254, dst_port=1720, src_intf=1-Trusted, dst_intf=3-Optional-2, rc=100, pckt_len=44, ttl=98, pr_info=offset 6 S 20077 win 32
2013-06-13 11:34:02
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE-00, protocol=1720/tcp, src_ip=192.168.2.254, src_port=4156, dst_ip=10.0.0.253, dst_port=1720, src_intf=3-Optional-2, dst_intf=1-Trusted, rc=100, pckt_len=44, ttl=95, pr_info=offset 6 S 20111 win 32
2013-06-13 11:34:47
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE-00, protocol=1720/tcp, src_ip=192.168.2.254, src_port=4157, dst_ip=10.0.0.253, dst_port=1720, src_intf=3-Optional-2, dst_intf=1-Trusted, rc=100, pckt_len=44, ttl=95, pr_info=offset 6 S 7999 win 32
2013-06-13 11:34:49
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE-00, protocol=icmp, src_ip=192.168.2.254, dst_ip=10.0.0.253, src_intf=3-Optional-2, dst_intf=1-Trusted, rc=100, pckt_len=60, ttl=95
2013-06-13 11:34:50
FWAllow, Allowed, pri=4, disp=Allow, policy=FIBRE-00, protocol=icmp, src_ip=192.168.2.254, dst_ip=10.0.0.253, src_intf=3-Optional-2, dst_intf=1-Trusted, rc=100, pckt_len=60, ttl=95
but on the juniper
we have found something else
H323 Menu -- Check enable
Application screen :
Nat mode (unchek)
Route mode (uncheck)
Get source port any (uncheck)
Message flood (uncheck)
H323 and sip check on application layer gateway