A great finding by Cool_Boy-PP - awesome job and many congratulations!
Now we can very easy store as much dialed and recieved calls as we want. All we have to do is:
1. Download seems 0050_0001 and 0051_0001
2. Open with hex editor (XVI32 for example)
3. Change offsets 8F and 93 to a higher number. Hex number will be converted to decimal as a numbers count
TIP: For example if you set 32 you will have 50 numbers count. The current 0A means 10...