topic Re: Pay as you go call forwarding not working - Connection problem or invalid MMI code in Pay Monthly

Pay as you go call forwarding not working - Connection problem or invalid MMI code

ekopay — Fri, 17 Jan 2025 14:12:35 GMT

Hello, I have a pay as you go sim and I want to be able to forward calls to a number when I need it but I get

'Connection problem or invalid MMI code' error message when I try to enable.

MMI codes I tried:
**21*{UK telephone number}# ---> I get the error, I tried with another O2 number and a LycaMobile number with samew results.
##21# --> this works, I get a positive message for disabling all forwarding settings
*#21# --> this works as well, I get response when checking current settings.

I tried calling support service and also going to O2 shop without receiving any relevant help and just telling me to try changing my pay as you go with a contract which I don't want.

Any help? My other option is to change provider. Thanks

Re: Pay as you go call forwarding not working - Connection problem or invalid MMI code

madasaf1sh — Fri, 17 Jan 2025 14:35:58 GMT

@ekopay

o2 PAYG doesn't support call forwarding so you are going to be best moving to a new network

How to get your PAC information is here

Re: Pay as you go call forwarding not working - Connection problem or invalid MMI code

Enlli — Fri, 17 Jan 2025 14:40:42 GMT

Do check other providers. Most of them do not support call forwarding on PAYG. This is because someone who has phoned up and whose call is forwarded can be cut off if the phone credit runs out as you are paying for the forwarding

Re: Pay as you go call forwarding not working - Connection problem or invalid MMI code

madasaf1sh — Fri, 17 Jan 2025 14:52:19 GMT

This page might help

https://www.simsherpa.com/networks/call-forwarding-costs

Re: Pay as you go call forwarding not working - Connection problem or invalid MMI code

MI5 — Fri, 17 Jan 2025 21:02:37 GMT

@ekopay wrote:
I tried calling support service and also going to O2 shop without receiving any relevant help and just telling me to try changing my pay as you go with a contract which I don't want.

It's the only way.

I'm not aware of any PAYG networks that allow it.

Re: Pay as you go call forwarding not working - Connection problem or invalid MMI code

ekopay — Fri, 28 Feb 2025 14:21:51 GMT

I moved to giffgaff, they have monthly contracts, basically same as pay as you go bundles, with all I need (calls forwarding, EU calls and traffic, 5G, etc.)

Re: Pay as you go call forwarding not working - Connection problem or invalid MMI code

Enlli — Fri, 28 Feb 2025 14:37:15 GMT

Just seen that

Giffgaff appears to leave O2 PAYG standing

To set up call forwarding on Giffgaff, you can use the Phone app or dial a short code. You can also ask a Giffgaff agent to help.

Using the Phone app

Open the Phone app

Tap the three-dot menu

Tap Settings

Tap Calling accounts

Select the calling account you want to use

Tap Call Forwarding

Choose a call forwarding option

Enter the number you want to forward calls to

Tap Turn on

Using a short code

Dial *21 followed by the number you want to forward calls to

Add a # at the end