Ricoh Aficio SP 1200SF User's Guide - Page 136
Setting dial tone detection, Telephone line interference
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Setting dial tone detection B When you send a fax automatically, by default your machine will wait for a fixed amount of time before it starts to dial the number. By changing the Dial Tone setting to Detection you can make your machine dial as soon as it detects a dial tone. This setting can save a small amount of time when sending a fax to many different numbers. If you change the setting and start having problems with dialling you should change back to the default No Detection setting. a Press Menu, 0, 5. b Press a or b to choose Detection or No Detection. Press OK. c Press Stop/Exit. Telephone line interference B If you are having difficulty sending or receiving a fax due to possible interference on the telephone line, we recommend that you adjust the Equalization for compatibility to reduce the modem speed for fax operations. a Press Menu, 2, 0, 1. b Press a or b to choose Basic(for VoIP) or Normal or High. Basic(for VoIP) cuts the modem speed to 9600 bps. and turns the error correction mode (ECM) off. For a standard telephone line: If you regularly experience interference on your standard telephone line try this setting. If you are using VoIP: VoIP service providers offer fax support using various standards. If you regularly experience fax transmission errors try this setting. Normal sets the modem speed at 14400 bps. High sets the modem speed at 33600 bps. Press OK. c Press Stop/Exit. Note When you change the compatibility to Basic(for VoIP), the ECM feature is not available. 126