No, a router from UNO would be redundant because I use the Watchguard XTM 5 running pfSense to run my network and that then connected to the ONT.

I'm spinning from the amount of contradictory advice I keep getting that the router and port forwarding needs to be conffigured all the way through to 'it should just be plug and play.'

Silent calls with CLI's such as 100 are the result of port scans etc.

Disable those firewall rules again but this time enable the option for “Accept Incoming from SIP Proxy Only" found within the Grandsream's GUI. This will stop any ghost calls coming through to your Grandstream!

I posted the following on the Vodafone community forums. You might find it useful too..

Purchased a Grandstream telephone adapter?
If you have purchased a Grandstream telephone adapter (ATA), it will come configured for the US telecom system as standard. As such, it will play back US style tones, sounds and some UK phone features may not work correctly unless you make some configuration changes via the devices web based GUI.

What are the UK regional settings for the Grandstream telephone adapters and how do I implement them?
Login to your Grandstream telephone adapters web based GUI by typing the IP address of the device into your web browser. (There is no need to enter "http://" before the IP address.) If prompted enter the username and password to complete the process, you should now have access to the devices Web based GUI, from here you can configure your device with the correct regional configuration settings for use in the UK.

As an example, on the Grandstream HT812 configure with the following:

Navigate to the BASIC SETTINGS page:

> Time Zone: GMT (London, Great Britain)
> Self-Defined Time Zone: GMT0BST,M3.5.0/1,M10.5.0

Navigate to the ADVANCED SETTINGS page:

> System Ring Cadence: c=400/200-400/2000;
> Dial Tone: f1=350@-19,f2=440@-22,c=0/0;
> Ringback Tone: f1=400@-20,f2=450@-20,c=400/200-400/2000;
> Busy Tone: f1=400@-20,c=375/375;
> Reorder Tone: f1=400@-20,c=400/350-225/525-0/0;
> Confirmation Tone: f1=1400@-10,c=0/0;
> Call Waiting Tone: f1=400@-20,c=100/2000;
> Prompt Tone: f1=350@-19,f2=440@-22,c=0/0;
> Conference Party Hangup Tone: f1=400@-20,c=0/0;
> Special Proceed Indication Tone: f1=350@-19, f2=440@-22, c=750/750-0/0;
> NTP Server: uk.pool.ntp.org

Navigate to the PROFILE 1/2 (FXS PORT on HT813) page(s):

> MWI Tone: Special Proceed Indication Tone
> Dial Plan: { 10[015] | 11[129] | 999 | 11[68]xxx | 1[45]7[1-2] | 08001111 | 0845464x | 0[1235789]xxxxxxxxx | 1410[1235789]xxxxxxxxx | 14700[1235789]xxxxxxxxx | 00xxx. | x+ | \+x+ | *x+ | *xx*x+ }
> SLIC Setting: UK
> Caller ID Scheme: SIN 227 - BT
> Hook Flash Timing: Minimum: 60 Maximum: 200
> Ring Frequency: 25
> Ring Tone 1: c=400/200-400/2000;
> Ring Tone 2: c=400/200-400/2000;
> Ring Tone 3: c=400/200-400/2000;
> Ring Tone 4: c=400/200-400/2000;
> Ring Tone 5: c=400/200-400/2000;
> Ring Tone 6: c=400/200-400/2000;
> Ring Tone 7: c=400/200-400/2000;
> Ring Tone 8: c=400/200-400/2000;
> Ring Tone 9: c=400/200-400/2000;
> Ring Tone 10: c=400/200-400/2000;
> Call Waiting Tone 1: f1=400@-20,c=100/2000;
> Call Waiting Tone 2: f1=400@-20,c=100/2000;
> Call Waiting Tone 3: f1=400@-20,c=100/2000;
> Call Waiting Tone 4: f1=400@-20,c=100/2000;
> Call Waiting Tone 5: f1=400@-20,c=100/2000;
> Call Waiting Tone 6: f1=400@-20,c=100/2000;
> Call Waiting Tone 7: f1=400@-20,c=100/2000;
> Call Waiting Tone 8: f1=400@-20,c=100/2000;
> Call Waiting Tone 9: f1=400@-20,c=100/2000;
> Call Waiting Tone 10: f1=400@-20,c=100/2000;

Remember to click on the "Update" and "Apply" buttons located at the bottom of every page to save and activate the changes.

Purchased a Grandstream HT813 telephone adapter?
The HT813 is an analog telephone adapter that features 1 analog telephone FXS port and 1 PSTN line FXO port in order to offer backup lifeline support using a PSTN line. Additional UK regional settings are required for this model and I have included them below.

Navigate to the FXO PORT page:
> Caller ID Scheme: SIN 227 - BT
> FSK Caller ID Seizure Bits: 96
> FSK Caller ID Mark Bits: 55
> PSTN Disconnect Tone: f1=400@-30,f2=400@-30,c=0/0;
> Country-based: UK
> Impedance-based: COMPLEX3 -- 370 ohms + (620 ohms || 310nF)

Edited by WelshPaul (Tue 21-Nov-23 13:01:26)

One further thought...

I've stumbled across a set of forum posts over at Plusnet related to someone with a Gigaset base station connecting up an old set of DECT Panasonic phones to an AAnet SIP line, and they were having issues with one end or another of a call not ringing audibly or connecting properly while the SIP trunk was registering calls as normal, and the advice they were given was that the RJ11 cable being used to connect the phone appliance was incorrectly wired.

Does anyone know if that might be a relevant problem for me?

There were NO cables supplied with my new Grandstream HT801 purchased via Amazon.co.uk and my old phone was connected to the old BT socket via a BT to RJ11 cable which I simply swapped with the first spare RJ11-RJ11 cable that I could find in my salvaged cables stash which I suspect came from the Openreach 'modem' that ran my Plusnet FTTC broadband until I got my UNO FTTP ONT a month or so ago...

Could it be an incorrect cable and if so how do I get the correct cable?

Thanks for that. It's sounding like I need to factory reset the Grandstream and try to find the set up guidelines for AAnet and do it all from scratch.

AAnet have confirmed that they see the calls attempting to be being made and that there's something in the hardware at my end that just isn't passing requests through to the hardware properly.

Setting up a Softphone INSIDE my LAN gets the same duff result.

Switching it to mobile data suddenly turns it into a working phone on that line.

I did something similar recently.
Used an adapter to connect the phone to the ATA - bought from Amazon - "Kenable RJ11 4 wire to BT Telephone Female Socket US to UK 6P4C 10cm"
In my case the phone was a BT Premium with inbuilt call blocker, this being the reason I went the ATA route.
I followed the changes to the ATA that "WelshPaul" advocated for UK compatibility.
The ATA is plugged into one of the ethernet outputs from my BT router. No other changes to the router. No extra firewall settings.
I found this would work for around 3 or 4 days and then disconnect.
Then followed advice from "Pezzy" on "Whirlpool" website forum - 'Aussie Broadband - VOIP using grandstream ht801'
quote "i think i've fixed it. changed nat traversal settings under the fxs port tab to keep alive. makes sense since the manual instructs to turn this on if your gateway is behind a firewall on a private network."

Now works like a dream.

Hope this helps.
Terry

Hi all,

Apologies for highjacking this thread, sort of.

Firstly, thanks for all the useful info in this thread.

I have signed up with A&A voip to give it a go. I have a tp-Link ac1600(vr600) v2 router and a grandstream ht812.

I configured it as above, without a DMZ or part forwarding, just relying on NAT. It seems to be fine for calls in both directions

I started getting ghost calls so activated the options to check invites for auth ID and also to only accept messages from the proxy. I also switched off the SIP ALG in the tp-link router (I'm not sure if I needed to do this or not).

The ghost calls have stopped.

Is there anything else I should do? (I have changed the HT812 admin password, and only allowed outgoing calls from my IP address in the A&A config page)

Isn't NAT supposed to block stuff like this if the connection wasn't initiated locally? Or is this exactly what the ATA does, ask for that specific port to be opened?

Edited by pompey_steve (Thu 28-Mar-24 17:14:25)