AASTRA 57i sip ip phone 发行公告
RN-001024-00, Rev 01, Release 2.0
iii
Contents
Contents
About this Document ...................................................................................................... 1
General Information ........................................................................................................ 2
General Information ........................................................................................................ 2
Model 53i IP Phone ..................................................................................................... 4
Model 55i IP Phone ..................................................................................................... 5
Model 57i IP Phone ..................................................................................................... 6
Model 57i CT IP Phone ............................................................................................... 7
Model 55i IP Phone ..................................................................................................... 5
Model 57i IP Phone ..................................................................................................... 6
Model 57i CT IP Phone ............................................................................................... 7