1 Before use1-2 VarioLink 2221/2821/3621Before use Chapter 11 Before use1.1 PrecautionsTelephone linesThe following types of telephone lines can be connected to this machine- Local telephone line (including fax communication networks)- PBX (private branch exchange, two line system)Be sure to check the following for the telephone line to be used.- The call waiting service is not used.- If a digital line is multiplexed in a corporate network used by customers,the fax communication may be subject to the following limitations.– The transmission speed is limited.- If an IP telephone is used, the status of the ADSL or Internet connectionmay reduce the transmission quality, or special faxes may not be trans-mitted correctly.If this machine is used via an IP telephone and these types of problemsoccur frequently, use the machine with a general local telephone.For details on using this machine with a general local telephone, refer tothe manual for the device used to connect your IP telephone or contactyour IP telephone company.- If a private branch line using VoIP technology is used, settings must bespecified from the private branch exchange in order for the fax connec-tion to be established.- If a country code and recipient’s telephone number is entered immediate-ly after the international dialing code, a busy signal is heard while thenumber is dialed and the fax cannot be sent. In this case, touch [Pause]twice after entering the international dialing code, and then enter the re-mainder of the telephone number after a six-second period. If the fax stillcannot be sent, use the “Quick Scan TX” function.Although rare, there may be times when a transmission error occurs whenthe default settings are used. This results from the multiplexing device plac-ing extreme restrictions on the band used for the line on the assumption thatit will be used for voice transmissions.In addition, these restrictions vary depending on the devices that make upthe network. For details, contact your network administrator.OptionsIn order to use the Fax functions with this machine, the optional fax kit mustbe installed.In order to use transmission/reception functions using two telephone lines,the optional fax multi line must be installed.
