Yealink CP920 User Guide74Connecting the Expansion PSTN Box CPN10Selecting the Country for PSTN UseYou have to select the country before using the PSTN account.Procedure1. Navigate to Menu > Settings > Basic Settings > Country.2. Select the desired country.3. Tap Save.Configuring Flash TimeYou can configure the flash time to adjust the length of time before a hook flash times out (or the call disconnects).Flash time can be configured from the following options:l Auto: It depends on the country that is selected for the phone. The flash time is automatically set for that country.l 75msec, 100msec, 300msec or 600msec: The hook flash times out after the designated time (in milliseconds).Before You BeginThe required flash time may be different in different countries or for different gateways/PBX servers. Contact your sys-tem administrator to find out which flash time you need to configure.Procedure1. Tap Menu > Settings > Advanced Settings (default password: admin) > Flash Time.2. Select the desired value.3. Tap Save.Related TopicSelecting the Country for PSTN UseBasic Call FeaturesThe phone using PSTN account can also perform some basic call features, such as placing, answering and ending calls.The phone supports the following basic call features when using the PSTN account:l Placing Callsl Answering Callsl Ending Callsl Auto Answerl Auto Rediall ReCalll Call Mutel Call Hold/ResumeRelated TopicsPlacing CallsAnswering CallsEnding Calls
