SMS Performance Measurement for 2H 2007* (1 - 30 December 2007)

Percentage of SMS Messages Delivered in less than 20 seconds

(a) SingTel Mobile ("STM") (originating network)



(b) M1 (originating network)



(c) StarHub Mobile ("SHM") (originating network)

Percentage of SMS Messages Delivered in 1 hour or more

The maximum time taken for SMS messages to be delivered during the test was about 2.9 hours.

(a) SingTel Mobile (originating network)



(b) M1 (originating network)



(c) StarHub Mobile (originating network)

Percentage of SMS Messages Not Delivered

(a) SingTel Mobile (originating network)



(b) M1 (originating network)



(c) StarHub Mobile (originating network)

* The total sample size of test is 19,440 SMS messages.