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Commit d0699703 authored by Yoshiaki Naka's avatar Yoshiaki Naka Committed by Toshiya Ikenaga
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Unreliable number(255) for voice message count should not be provided 

There are SIM cards in the market that write the voice message count
0xFF to EF_MWIS when the exact number is undetermined. Since only 0x00
is handled as 'unknown' in the current Android implementation. 0xFF
should also be treated as 'unknown'.

It is better to do so from a different point of view also. 3GPP TS
23.040 says that the voice message count 255 shall be taken not only
255 but also greater number. Therefore, phone should not display the
notification "New Voicemail (255)" because the exact number of the
voice messages cannot be determined.

Bug: 30544108
Change-Id: Ic024e2063f2047b46db894d226097ab27bb6d9de
parent df3f5e86

src/java/com/android/internal/telephony/uicc/SIMRecords.java

100644 → 100755
+1 −1
Original line number Diff line number Diff line
@@ -480,7 +480,7 @@ public class SIMRecords extends IccRecords { 
            voiceMailWaiting = ((mEfMWIS[0] & 0x01) != 0);

            countVoiceMessages = mEfMWIS[1] & 0xff;



            if (voiceMailWaiting && countVoiceMessages == 0) {

            if (voiceMailWaiting && (countVoiceMessages == 0 || countVoiceMessages == 0xff)) {

                // Unknown count = -1

                countVoiceMessages = -1;

            }