I have noticed during testing that turning off the SIP alg service in Router OS only seems to apply to UDP.
As soon as I change my phone to TCP mode, SIP ALG starts functioning again.
Does anyone have any idea how to turn it off?
/ip firewall service-port disable sip
Should do the trick.
http://wiki.mikrotik.com/wiki/Manual:IP/Services#Service_Ports
That’s what I did, but it only seems to affect UDP.
On Cisco iOS you can toggle sip alg on TCP and UDP off independently of each other. I guess I’m wondering if it’s a known feature that this only works for UDP or a bug?
RouterOS’s implementation of SIP ALG applies to TCP and UDP.
The option “sip-timeout” only applies to UDP because of the nature of UDP is “connection-less”
I just gave a presentation on SIP ALG at the Mikrotik MUM in Denver Colorado 2017 explaining everything about SIP ALG in RouterOS
watch here:
https://youtu.be/tM7wyKdnIKA