The agency recently sent out a press release on behalf of Orange, announcing its new Talk Now instant messaging service.
But somewhere along the line the message became garbled - and attained a slight Yorkshire accent.
Journalists everywhere were greeted with the header 'Orange launches Talk Nowt service to customers'.
Apparently, the mistake occurred because the trademark (TM) sign was translated into a 't' by some email applications. 'It wasn't really an error on our side,' argued an Edelman account director who wished to remain anonymous.
'We sent the release out with no typos.'
Edelman then sent out a further email (riddled with grammatical errors) announcing that the service was not, in fact, 'talk nowt'.
And here we were thinking this was a creative campaign that would put the mobile phone firm out of business. 'It has actually started some good dialogue with journalists,' adds the Edelman account exec.