Voip issues Dellmont services

jgbyr · 26-09-2023 10:50AM #1

I've used DiscountVoip & FreeVoipDeal, both Dellmont services, to make outgoing calls using our landline number for the caller id.

Recently calls haven't connected so I thought it was a setting issue on the Fritzbox.

I use IrishVoip.com to receive calls & can also make outgoing calls using their sip settings.

Contacted DiscountVoip & it seems its to do with caller id on their services

Here is their response :

"Thanks for your message.

Unfortunately it is getting more difficult to make ‘national’ calls to many countries. That is when you make a call to a certain country while you use a caller ID from the same country.

For example Irish caller ID’s can no longer be used for calls to Ireland. You can still use a valid caller ID from another (EU) country for the calls.

This is something caused by national operators and authorities, we can not influence this.

Our apologies for the inconvenience.

Kind Regards,

Customer Service. "

Ten Pin · 26-09-2023 11:53AM

Is it just outgoing landline calls? Does it work with no caller ID? Does it work with a mobile caller ID?

Mobile to mobile (both Irish & caller ID shown) calls worked fine for me recently.

AIUI, the restrictions on VOIP providers was for non EU caller ID rather than local / national and the form of restriction was a higher rate charged.

Ten Pin · 26-09-2023 12:16PM

From Comreg...

https://www.comreg.ie/comreg-consults-on-combatting-scam-calls-and-texts/

The issue appears to be that Dellmont is considered as a call from abroad with a local number and would maybe need a local server in each country to be allowed through.

Or else Dellmont would need to be seen as a "trusted" source as they require any landline / mobile number to be verified before use as outgoing caller ID.

jgbyr · 26-09-2023 12:42PM

https://www.boards.ie/discussion/comment/121158481#Comment_121158481

It doesn't work with either the landline or mobile number set for caller id. I've tried calling from the voip phone & using their app. Won't work with caller id on, which is the main reason I use it. I Seems to have changed recently. I hadn't used it in a while.

Ten Pin · 26-09-2023 01:11PM

Not sure if this will make any difference...

Are you using a STUN server?

Have ya tried it with CSipSimple on android (need to be sideloaded as it's not on playstore).

CSipSimple allows varying caller ID without changing it in the Dellmont portal which can be set to No Caller ID, as long as the caller ID used has already been verified.

jgbyr · 26-09-2023 01:20PM

https://www.boards.ie/discussion/comment/121158815#Comment_121158815

Thanks, might give that a try on the android to see if it works. Unfortunately it's really the house phone that's the main issue. Not sure if that configuration could be set up on the Fritzbox. I'll research it.

jgbyr · 18-12-2023 12:27PM

https://www.boards.ie/discussion/comment/121507467#Comment_121507467

Thanks but that's no use. I had it set up for the house telephone number so using a foreign number wouldn't make sense as no one would answer it especially with all the scam calls going around.

Dan Jaman · 20-11-2024 02:23AM

As an update to this thread, I've been having the same lack of connectivity.

I found that I could call out to the UK repeatedly, but no Irish landline or mobile numbers.

I disabled my Caller ID in the freevoipdeal account page and everything started working again.

What a pain in the arse.

Ten Pin · 31-12-2024 06:28PM

Does anyone know if local caller ID blocking is happening with other calling apps like Yolla and Viber Out?
If not then why are Dellmont doing it?

Ten Pin · 15-03-2025 02:06PM

This might be working again

Johnboy1951 · 05-08-2025 09:49PM

I did not have this problem until this year, so was glad to find the 'no CID' solution.

Unfortunately I cannot connect to landline numbers, but can connect to mobile numbers.

I don't care about the lack of caller ID, but this 'no landline calls' is bothersome. I am also using a Fritz!Box and re-did my dialling rules just to be sure.

@Ten Pin do you have any info you can share that might help? Thanks.

.

Johnboy1951 · 05-08-2025 10:41PM

https://www.boards.ie/discussion/comment/123004441#Comment_123004441

As I understand it the calls are being blocked at the Irish end as they won't accept a caller ID of an Irish number apparently originating from outside the country - Dellmont.
This presumably was to prevent spoof calls from foreign parts pretending to be originating in Ireland.

Ten Pin · 06-08-2025 12:07PM

Last landline call I made via Dellmont was a few months back and it worked OK.

Are you using different providers for landline vs mobile calls? Check the router SIP login username(s).

In order to use the caller ID as set ("no ID" in this case) in the Dellmont portal, the router SIP login must be the Dellmont account username. If a different number that was correctly verified in the portal is used for login then it will attempt to use that number as callerID, ignore the portal callerID setting and reject the call at recipient network level.

Johnboy1951 · 07-08-2025 01:08AM

https://www.boards.ie/discussion/comment/123700572#Comment_123700572

A few months ago I did not have this problem.

Calling to mobile is good. No CLID sent.
Same account used for landline calls, with same settings of course. No connection.

I am beginning to suspect something amiss in the providers settings.

Johnboy1951 · 07-08-2025 09:34AM

Latest from the provider, I having informed them about crossed-calls at times in place of landline connection.

Dear customer,
Disabling your caller ID does not solve the issue, this only makes your caller ID invisible for the other party, but it is still used in the protocol. You can try to delete the caller ID completely from your account but I can not guarantee that this will work. (and you will be charged the non-EU caller ID rate)
The 'crosstalk' issue is because we deliver the call to other suppliers but instead of rejecting they provide this 'error' calls. Because of your Irish caller ID the regular suppliers reject your call. I refunded these calls in your account.
Kind regards,
Customer Service

Can others successfully make calls to landline numbers from a Delmont/Betamax provider? It is beginning to look like this could be affecting everyone, if that response is accurate.

I would appreciate others reporting what they find to see if this is universal or just some excuse.

Thanks.

Ten Pin · 07-08-2025 11:38AM

Made test calls to a landline and a mobile yesterday and both went through as normal (with no CallerID).

Maybe try a different app, eg MicroSIP on Windows or CSIPSimple on Android.

Or try a mobile data connection instead of home broadband or vice versa.

Wonder if the Fritzbox is sending something in the SIP header that mobile networks ignore but landline networks use to block calls.

Johnboy1951 · 10-08-2025 11:57PM

I successfully made one local call tonight …….. but it took ages to connect.
If it continues to work I can put up with the slow connection before it begins to ring.

I doubt the FritzBox is sending something different for landlines and mobiles, so it seems likely that the tel services the two types are connecting to in Ireland have some different setting which is causing these failures.

Ten Pin · 09-01-2026 01:21PM

As stated in OP quoting Dellmont...

"You can still use a valid caller ID from another (EU) country for the calls"

Has anyone tried this with a UK mobile number as caller ID to make calls and not be charged at the (higher) non-EU call rate?

Johnboy1951 · 10-01-2026 01:36AM

The difficulties using a foreign caller ID are too much for me ….. call refused by the called person as a spam suspect; the number gets used to try to call me back would fail unless I actually possessed that number and parked it so I could receive calls.
Just not worth the hassle TBH.

RianKellyIT · 30-03-2026 07:27PM

The issues with Dellmont caller ID have been getting worse lately and it sounds like a mix of their own platform problems and the ComReg changes around caller ID verification. Since September 2023, Irish carriers have been required to validate outbound caller IDs more strictly as part of the anti-spoofing push, and Dellmont's implementation of that verification was apparently patchy. On the FritzBox side, worth checking a few things. First, make sure the SIP registration interval is not too short, as some providers start dropping calls when the box keeps re-registering. Setting it to 120-180 seconds in the telephony settings usually helps. Second, look at the STUN server setting in the FritzBox SIP account config, stun.fritz.box is the default but you can point it to a public STUN server like stun.l.google.com on port 19302 if the Fritz default isn't working. For the caller ID problem specifically, the cleanest workaround is what IrishVoip lets you do, use their verified number rather than the landline one. If Dellmont still allows setting no caller ID that might get outgoing calls working again even if the landline presentation stays broken. Their support tend to be slow on these issues so it may be a wait-and-see at this point, no bother.

Johnboy1951 · 31-03-2026 01:59AM

I have successfully made calls with no caller ID, but unfortunately a lot of people just refuse to take calls with no caller ID these days. 😥

Voip issues Dellmont services

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