C o m m u n i c a t i o n s , I n c .
© 2006-2007
PalmMicro Communications, Inc.
Room 0611, Bldg.B Tsinghua Tongfang Technology Plaza, 1 Wangzhuang Road, Beijing, CHINA
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Do Not Upgrade “Long” Ring Tone
Don’t upgrade a ring tone more than 192K bytes.
1. AR1688 ring tone is located in bank 2, 3, 4, total 192k bytes; AR1688 hold music is
located in bank 5, 6, 7, the format and size is the same as ring tone.
2. AR1688 font used in dot-matrix display designs (AR168G/GP1260/GP1266/GP2266)
is located in bank 8, 9, 10, 11
3. When using TFTP to upgrade ring tone and hold music, we will not check file length.
This is a back door for us to upgrade font, because there is no special way to upgrade
font
4. A ring tone more than 192k bytes will replace hold music. A long ring tone more than
384k bytes will replace font and make dot-matrix display wrong. And a very long ring
tone more than 640k bytes will destroy software program space (page 12 - 31) and
make the IP phone fail to boot normally, lucky enough, safe mode in page 0 will not
be replaced, the phone can still get into safe mode upgrade correct files again.
