Troubleshooting, Handset off-hook, no dialling tone, no display, Display is working, but connection is not possible – AASTRA Office 35IP User manual User Manual

Page 66: Freely configurable keys cannot be configured, The display reads: "trying to register, Insufficient display contrast, Impaired sound quality during hands-free operation, Impaired sound quality when making phone calls, Note

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Troubleshooting, Handset off-hook, no dialling tone, no display, Display is working, but connection is not possible | Freely configurable keys cannot be configured, The display reads: "trying to register, Insufficient display contrast, Impaired sound quality during hands-free operation, Impaired sound quality when making phone calls, Note | AASTRA Office 35IP User manual User Manual | Page 66 / 79 Troubleshooting, Handset off-hook, no dialling tone, no display, Display is working, but connection is not possible | Freely configurable keys cannot be configured, The display reads: "trying to register, Insufficient display contrast, Impaired sound quality during hands-free operation, Impaired sound quality when making phone calls, Note | AASTRA Office 35IP User manual User Manual | Page 66 / 79
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