___________________________________________________________________________________________6757i IP PHONE USER GUIDE - CLEARSPANAASTRA - 2832-001 PAGE 105 OF 1208 Appendix A - Optional Expansion Modules8.1 Expansion ModulesThe 6739i IP Phone offers optional M670i and M675i Expansion Modules that attach to the rightside of the phone to provide additional keys. The keys support a variety of features including: Busy Lamp Fields (BLFs) (maximum of 50) Speeddial Shared Call Appearance Phone Lock8.1.1 M670iThe M670i provides 18 keys in each column (totaling 36 keys) on the keypad. Each key providesan LED for indicating call status. The M670i provides a paper label for convenient key labeling.Figure 24 M670i Expansion Module8.1.2 M675iThe M675i provides 10 softkeys in each column (totaling 20 keys) on the keypad. The M675i alsoprovides 3 keys at the bottom left of the unit. These keys represent "Page 1", "Page 2", and "Page3" of the LCD display. The M675i has 20 keys available on each page (totaling 60 softkeys). Eachkey provides an LED for indicating call status. The M675i provides an LCD screen for displayingkey labels.Figure 25 Model M675i Expansion Module
