Beginner Basics • Re: Help with configuration of a port.

So I have tested it and it does not work. The pbx does not register to the SIP server.

So I have some more information that maybe helpful:
on another greek forum (adslgr.com) a user (astbox) managed to make it work for a home connection on the same provider. The difference is that home connections require vlan=837 and there is no need for an extra dedicated pppoe connection for voip.

However the user indicated some things that are helpful:

1) MTU of the vlan must 1500.
2) a dhcp client must be created because the ISP expects the VoIP devices to be on a local network different than the rest of devices. So for example if the "classic" internet devices are on 192.168.88.0/24, the pbx must be on a network 10.x.x.x. It is like the provider isolates completely voice from the rest of devices.

So the user also mentions that the following must be set:

a) IP>DHCP Client>Add new>Interface -> vlan that was created (in my case 838 -> voip_vodafone_vlan) > Check Add Default Route> Press OK
b)IP>Firewall>Add New, chain -> srcnat, οut interface -> VLAN interface (voip_vodafone_vlan) , action -> masquerade and then press OK.

On step b) I do not know if I have to set on the out interface the VLAN interface (voip_vodafone_vlan) OR the pppoe connection dedicated for the voip registration. (pppoe_connection_for_vodafone_voip)

He also mentioned that if everything goes well then I should see on IP>Routes records like this:

10.13.36.128 255.255.255.240 10.207.64.1 VoIPv
10.14.35.128 255.255.255.240 10.207.64.1 VoIPv
10.16.36.128 255.255.255.240 10.207.64.1 VoIPv
10.120.25.48 255.255.255.240 10.207.64.1 VoIPv
10.120.28.64 255.255.255.224 10.207.64.1 VoIPv
10.120.58.0 255.255.255.224 10.207.64.1 VoIPv
10.120.60.0 255.255.254.0 10.207.64.1 VoIPv
10.120.65.0 255.255.255.240 10.207.64.1 VoIPv
10.207.64.0 255.255.240.0 0.0.0.0 VoIPv
62.38.82.0 255.255.255.0 10.207.64.1 VoIPv
62.38.85.0 255.255.255.0 10.207.64.1 VoIPv
62.38.86.0 255.255.255.0 10.207.64.1 VoIPv
62.38.87.0 255.255.255.0 10.207.64.1 VoIPv
62.38.88.0 255.255.255.0 10.207.64.1 VoIPv

Also I would like to mention the following:

The UCM has a function on the Network settings that called Dual. Basically, because it provides two RJ45 ports then one can be on 192.168.88.0/24 with different settings and the other on another network completely.

So, I do not know if this provides are helpful insight, but if you guys know how can I implement this I would be really grateful! (on the mikrotik side not the UCM)

Statistics: Posted by und3rd06012 — Fri Feb 09, 2024 1:11 am

---