Ian Jackson wrote:
In the UK, the only 'SMS' morse I've ever heard is 'SMS' with no breaks
(di-di-di-dah-dah-di-di-dit). Why would it be otherwise?

It appears that, for that Prudential commercial, the
spacing between the dahs is longer than the spacing
between the dits.
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com