stop service reply sound

[anustupkundu]

Yesterday I updated my miro after buying it on 21.11.2012. After I updated my miro whenever I get a service reply from service provider, it makes a sound which is pretty annoying. Before the update it it didn't make any such sound for a service reply. I would like to know how i can turn that off? If it can't be turned off, is there anyway to roll back to the older version?

[Johan]

Could you please describe this service reply you get in more detail? When do the phone make this sound?

[anustupkundu]

Like whenever I end a call or send a text, my service provider sends a service reply stating how much of my balance was deducted and how much is remaining(I'm a prepaid user). Previously ie before the update my phone didn't make any sound to such service reply and now it does and it is pretty annoying!