1 introduction, 1 about this user guide, 2 preparing for use – AASTRA DT690 User Manual

Page 3: 3 ipei and ipdi codes, 1introduction

1 introduction, 1 about this user guide, 2 preparing for use | 3 ipei and ipdi codes, 1introduction | AASTRA DT690 User Manual | Page 3 / 140

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