![]() ![]() Do not interrupt the process or remove the USB data cable. The data is initially loaded from the update server on the Internet. The amount of time this takes is dependent on the speed of your Internet connection. The display on your phone is switched off and the message key and the talk key start flashing. G.Once the update is complete, your phone will automatically restart. Check used codec when using fax-functionality (e.g.Check maximum possible parallel calls of the line.Use only certified provider (see WebUI of T300/500 or wiki).Check maximum possible parallel calls of the line VoIP.Check jumper position for internal or external bus of the port.Use Digium TE122BF (1-port) or TE207PF (2-port) (Gigaset-edition) PCI-card.Use normal ISDN-cable (or lan-cable) for external S0-bus E1/PRI.Use crossed cables only for internal S0-bus.Check echo-cancellation settings of your line (card supports hw-ec).Use Digium B410PF (Gigaset-edition) 4-port SO PCI-card.Use Digium TDM440EF (Gigaset-edition) 4-port FXS PCI-card ISDN/S0.Use Digium TDM422EF (Gigaset-edition) 2-port FXS & 2-port FXO PCI-card.Use Digium TDM404EF (Gigaset-edition) 4-port FXO PCI-card.Use only trusted provider (preferred the certified provider) PSTN.Check requirements for external, parallel calls in the company (normally ca.45kbps per call (average voicequality, no fax-transmission) Provider connection Check bandwidth for up- and download when using VoIP-provider.Use business ISPs which can guarantee stability of the line.Minimize the number of cascade-switches (star-topology preferred) ISP.Using WLAN-clients only in exceptional case (DE900IP PRO).Cat 6 (or 7) cabling to ensure Gigabit-compatibility.100/1000MBit switches for internal traffic.Use Wi-Fi with minimum of 702.11g (n is preferred) Cabling. ![]()
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