2276 CHAPTER 132: VOICE ENTITY CONFIGURATIONn In voice view, the vqa dscp media command has global significance, and thedscp media command is valid only for the configured voice entity..Resetting a Voice Card When a card is reset, all traffic carried by it will be interrupted and the card will bere-initiated. As a general rule, you can reset a voice card when it works abnormally(for example, the configuration is correct but the call connection cannot beestablished normally). You can observe the status of the LED on the card to judgewhether a reset is performed.Configuring GlobalDefault VoiceParametersFor each voice entity, if the certain command is not performed to configure aparameter, the system uses the default value of the parameter.When there are too many voice entities on one router and the values of most voiceentity parameters are the same as the default values, the default values can beadopted to improve the efficiency.In some cases when the manually configured parameter values of most voiceentities are almost the same but different from the default values, to specifysuitable voice parameters for these voice entities one by one will waste much time.In this case, you can use the default command to generate new default valuesglobally. In this way, each voice entity will directly inherit new default values, amore flexible, simple and convenient configuration is thus realized.To do... Use the command... RemarksEnter system view system-view -Enter voice view voice-setup -Set the duration ofmonitoring DSP buffered datavqa dsp-monitorbuffer-time timeOptionalBy default, DSP buffered datais not monitored.Duration greater than 240milliseconds is recommendedbecause too small a durationvalue will result in poor voicequality in the case of severejitter.Set the DSCP subfield in theToS field in the IP packets thatcarry the RTP stream or voicesignalingvqa dscp { media | signal }dscp-valueOptional101110 by default.Configure the time forswitching from VoIP entity tobackup POTS entity in case ofa VoIP call failurevoip timer voip-to-potstimeOptional5 seconds by default.Table 79 Follow these steps to reset a card:To do... Use the command... RemarksEnter system view system-view -Enter voice view voice-setup -Reset the voice card vi-card reboot slot-number Optional
