Aqui lo dejo, pruebenlo y me dicen.

Código:
;W810 SW-R4EA031
;replace time for sms sound. improved for higher times
;(C) HierOS, svinuk
;(p) Miguel8e
v.2 Final
+44140000
;134449C: 10270000 204E0000 ;20sec
;134449C: 10270000 30750000 ;30 sec
;134449C: 10270000 C8AF0000 ;45 sec
;134449C: 10270000 60EA0000 ;60 sec
;134449C: 10270000 c0d40100 ;2min
;134449C: 10270000 20BF0200 ;3min
134449C: 10270000 FFFFFFFF ;Sin Limite De Tiempo!!!