Frequently Asked Question

This version of firmware constitutes Cetis’ 3rd generation of SIP phones based upon a new chipset and SIP stack. In addition, we are introducing a set of firmware file name changes with this release. Cetis SIP firmware follows a naming convention based on model. All Cetis IP phones share the same base chipset and firmware. Server registration, SIP messaging, and call control are all the same. The different model prefixed versions are to accommodate variances in single vs. true 2-line capability, corded vs. cordless radio handsets and LCD display screen sizes. and includes numerous enhancements and bug fixes.

Marketing model                                           Firmware model
E100IP, M100IP, ND2100IP                              CC1
E200IP, M200IP, ND2200IP                              CC2
9600IP, E103IP, M103IP, NDC2100IP                CD1
9602IP, E203IP, M203IP, NDC2200IP                CD2
3300IP                                                          C31
3302IP                                                          C32
3300IP-TRM                                                   CT1
3302IP-TRM                                                   CT2
E100IP-TRM, M100IP-TRM                               CM1
E200IP-TRM, M200IP-TRM                               CM2
9400IP                                                          C14 N/A
9402IP                                                          C24 N/A