On-hook dialing (predial), Using a speed dial feature key – Obihai OBi1000 User Guide User Manual

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On-hook dialing (predial), Using a speed dial feature key | Obihai OBi1000 User Guide User Manual | Page 22 / 62 On-hook dialing (predial), Using a speed dial feature key | Obihai OBi1000 User Guide User Manual | Page 22 / 62
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