Chapter 5 Setting up IP telephones 65Survivable Remote Gateway 50 Configuration Guide5 Set the Auto-assign DNs check box according to the requirements of your installation (if set,the SRG50 automatically assigns DNs; refer to BCM50 Device Configuration Guide fordetails).Local mode indicationWhen an IP telephone is in local mode, a message is displayed on the phone to indicate the localmode state to the user. The default setting is Local Mode.To change local mode indication1 On the SRG50 Element Manager, navigate to Configuration > Resources > TelephonyResources.2 Select the IP & Application Sets row (Figure 9).3 On the Details for Module: Internal subpanel, select the IP Terminal Global Settings tab.4 The Advertisement/Logo field specifies the message that provides local mode indication.Change as required.IP telephone codec and jitter settingsWhen the IP telephones are operating in local mode, codec and jitter settings are set on aphone-by-phone basis. Configure the settings to meet the requirements of the local SRG50environment. They do not have to be the same as the main office settings (in contrast to the QoSsettings for the VoIP trunks; refer to “QoS settings (codec, jitter buffer, and related items)” onpage 80).To enter codec and jitter settings for IP telephones in local mode1 On the SRG50 Element Manager, navigate to Configuration > Resources > TelephonyResources.2 On the Modules panel, locate the Module type column and select the IP & Application Setsrow (Figure 10).3 On the Details for Module: Internal subpanel, select the IP Terminal Global Settings tab.The fields related to QoS are on the right side of the panel.4 Enter the appropriate values.