No IPv6 on 4G.

JPT:

 

Vodafone

 

Don't Know if Vodafone has an APN to bypass CG NAT, if they do I would be VERY interested to know

Regards

Tim

I've done some further test:

- tried a SIM card which is "data AND voice": same result, incoming calls get busy signal a few minutes after the USB 4G Modem kicked in

- when incoming calls get the busy signal, I made an outgoing call, then made an incoming call immediately after, but still got the busy signal. It appears an outgoing call is not reregistering an expired SIP.

I don't think the HG659 can be configured to change the recommended settings, because the interface does not expose these settings. Had a look at the HG659 modem/router .conf file, but it is encrypted.

Has anyone got this to work?

JPT:

 

It appears an outgoing call is not reregistering an expired SIP.

 

It is indeed as it appears :) And just to be clear, this is actually normal intended operation with SIP.

Registration and outbound calls are different processes (possibly not even handled on the same device at the supplier end) and the former does not trigger the latter. You can even make multiple (authenticated) outbound calls from different locations simultaneously! (and none will affect the registration endpoint)

Also tried the Vodafone APN direct.vodafone.net.nz

According to an old 2006 post on this forum, this APN is private, allowing inbound traffic.

See https://www.geekzone.co.nz/forums.asp?forumid=40&topicid=9780

But, same result, busy signal after a while.

Would be good to know if there is a Vodafone APN that is public IP,  without CG NAT, and allowing inbound traffic.

cyril7: Wouldn't not just be easier to use an ata that has comprehensive configuration options.

Cyril

Yeah, if all fails, that's the way forward. More device clutter, but if it's the only way, it's the only way.

JPT:

 

cyril7: Wouldn't not just be easier to use an ata that has comprehensive configuration options.

Cyril

 

 

 

Yeah, if all fails, that's the way forward. More device clutter, but if it's the only way, it's the only way.

 

I'm not sure which PoTS handset you're using on the Huawei router, but to avoid the device clutter you could replace the existing handset with a true VoIP handset that registers direct to 2talk and therefore bypasses the Huawei's SIP stack. The cost would be a little more than an ATA but it means no increase in device numbers.

If you use a cordless then the Yealink W53P is a good value option.

https://www.yealink.com/upfiles/products/201809/1536550295044.pdf

speed:

 

JPT:

 

cyril7: Wouldn't not just be easier to use an ata that has comprehensive configuration options.

Cyril

 

 

 

Yeah, if all fails, that's the way forward. More device clutter, but if it's the only way, it's the only way.

 

 

 

 

I'm not sure which PoTS handset you're using on the Huawei router, but to avoid the device clutter you could replace the existing handset with a true VoIP handset that registers direct to 2talk and therefore bypasses the Huawei's SIP stack. The cost would be a little more than an ATA but it means no increase in device numbers.

 

If you use a cordless then the Yealink W53P is a good value option.

 

https://www.yealink.com/upfiles/products/201809/1536550295044.pdf

 

Great tips, thanks, will look into this and find the best way forward. Many thanks everyone, good to know that it cannot be resolved with the existing Huawei device. Cheers

cyril7: So using that apn what ip address does the modem report and what's your ip by googling "what's my ip"

Cyril

Not sure I can answer that correctly, the "what's my IP" shows a 49.xxx.xxx.xx address, but my modem seems to show a different address to "what's my IP" all the time when on 4G. Like 100.xx.xx.xxx. Not sure whether that is called a local address?

WHen on VDSL, the IPs match.

cyril7: Hi is the local ip 100.x.x.x if so it's cg nat, pretty sure all the 49.0.0.0 publics are CG-NAT

Cyril

I am guessing that the APN Vodafone and direct.vodafone.net.nz make no difference at all when it comes to VoIP. ??

I think buying a ATA (or IP Phone) and configuring it as described at the beginning (switching to TCP instead of UDP), sounds like the most sensible fix. Good to have arrived here with all your  help. Cheers.

JPT:

 

I think buying a ATA (or IP Phone) and configuring it as described at the beginning (switching to TCP instead of UDP), sounds like the most sensible fix. Good to have arrived here with all your  help. Cheers.

 

Personally I would change the SIM to Spark, use direct.telecom.co.nz as your APN, your CGNAT will disappear, and you wont have any of the issues you are experiencing, it will just work