MMS not sending

[SarahD]

I cant seem to send MMS messages from my IPhone 12 to another phone. 
I get ‘message sending failed’ this happens no matter the photo size etc 

Never had a problem before just recently. 

MMS is enabled on my phone. 

I am attempting to send to a phone not using WiFi or 4G. 

[PeteG]

Hi there, Sarah. 

To receive MMS, a data will be needed. Normally a phone will auto establish a data connection in order to complete the download, however there are settings on some phones that will prevent this. 

There's also the possibility that your MMS is actually being sent as a RCS message, and those will require the other phone to be network connected in order to receive them, the phone will not connect on it's own to receive RS messages under any circumstances. 

If it isn't either of those things, can you confirm if you're able to send the message to any other phones? 

Pete.

[SarahD]

I find it strange that I was able to send photos to this one a while ago but suddenly can’t. 
Thanks for responding. 

[Paddiewack]

Having thought about it I think the “RCS” scenario is the most likely as this was only recently introduced by Three. Check your settings.

[SarahD]

RCS is enabled. 
Thanks. 

[Paddiewack]

Ok I wish you all the best. 👋

[jr0]

Hi @SarahD

have you checked if you have any barrings?
And what is the SMSC (SMS Center or aka message center) number in your settings/sim?

[SarahD]

Hi, where would I find the SMSC number?

Thanks. 

[Paddiewack]

I too have an iPhone 12 and a good while ago I had a similar issue which I resolved by resetting the network settings. Can’t guarantee it’ll work but give it a try. Failing that call customer service.

[SarahD]

Thankyou. I’ve just done that after being on live chat with customer service and it hasn’t worked.