Panasonic KX-TDA5480 Programming Manual

Also see for KX-TDA5480: Installation manual Installation manual Installation manual Getting started Programming guide

Contents

2.2 Programming18 Programming GuideParameter DescriptionsQoS Field SettingsJitter Buffer SettingsThe parameters below are used to set the ToS (Type of Service) field in the header of IP packets tocontrol QoS of VoIP communications.For more information about QoS, refer to "A1.4 QoS (Quality of Service)" of the VoIP Gateway CardGetting Started. For the actual setting values, consult your network administrator.Parameter & Description Default Value RangeToSSpecifies the value in the ToS field by a generic term.For details, refer to "Detailed Explanations".Priority: 0 0 to 7Normal Normal,Monetary Cost,Reliability,Throughput,DelayDSCPSpecifies the value in the ToS field by a DSCP forDiffServ.No default 0 to 63HEXSpecifies the value in the ToS field by a hexadecimalnumber.No default 00 to FFWhen voice signals are packetized and transmitted, individual packets can take different paths throughthe network and arrive at the destination at varied timings. This is referred to as "jitter", and it can causedegradation in speech quality. To compensate for jitter problems, the "jitter buffer" accumulates thepackets temporarily for processing.The parameters below are used to adjust the size of the jitter buffer; however, in general, there is noneed to change the default values.Parameter Default Value RangeG.711/G.729A Jitter Buffer Minimum (ms) 10 10 × n (n = 1–40)G.711/G.729A Jitter Buffer Maximum (ms) 400 10 × n (n = 1–40)G.711/G.729A Jitter Buffer Default Value (ms) 10 10 × n (n = 1–40)G.711/G.729A Jitter Buffer AdjustmentInterval (s) 1-5s5 1 to 5G.723.1 Jitter Buffer Minimum (ms) 30 30 × n (n = 1–40)G.723.1 Jitter Buffer Maximum (ms) 1200 30 × n (n = 1–40)G.723.1 Jitter Buffer Default value (ms) 30 30 × n (n = 1–40)