Proxy Server Port ....................................................................................................111Presence Server Address .......................................................................................111Presence Server Port ..............................................................................................1114.5.1.4 Outbound Proxy Server .............................................................................................111Outbound Proxy Server Address ............................................................................111Outbound Proxy Server Port ...................................................................................1124.5.1.5 SIP Service Domain ..................................................................................................112Service Domain .......................................................................................................1124.5.1.6 SIP Source Port .........................................................................................................112Source Port .............................................................................................................1124.5.1.7 SIP Authentication .....................................................................................................113Authentication ID .....................................................................................................113Authentication Password ........................................................................................1134.5.1.8 SIP Settings ...............................................................................................................113SIP User Agent .......................................................................................................1134.5.1.9 DNS ...........................................................................................................................113Enable DNS SRV lookup ........................................................................................113SRV lookup Prefix for UDP .....................................................................................114SRV lookup Prefix for TCP .....................................................................................1144.5.1.10 Transport Protocol for SIP .........................................................................................114Transport Protocol ..................................................................................................1144.5.1.11 Timer Settings ...........................................................................................................115T1 Timer ..................................................................................................................115T2 Timer ..................................................................................................................115Timer B (milliseconds) ............................................................................................115Timer D (milliseconds) ............................................................................................115Timer F (milliseconds) .............................................................................................116Timer H (milliseconds) ............................................................................................116Timer J (milliseconds) .............................................................................................1164.5.1.12 Quality of Service (QoS) ............................................................................................116SIP Packet QoS (DSCP) .........................................................................................1164.5.1.13 SIP extensions ...........................................................................................................116Supports 100rel (RFC 3262) ...................................................................................116Supports Session Timer (RFC 4028) ......................................................................1174.5.1.14 NAT Identity ...............................................................................................................117Keep Alive Interval ..................................................................................................117Supports Rport (RFC 3581) ....................................................................................117STUN ......................................................................................................................1184.5.1.15 Security ......................................................................................................................118Enable SSAF (SIP Source Address Filter) .............................................................1184.5.2 VoIP Settings ................................................................................................................1194.5.2.1 RTP Settings .............................................................................................................119RTP Packet Time ....................................................................................................119Minimum RTP Port Number ....................................................................................119Maximum RTP Port Number ...................................................................................1194.5.3 VoIP Settings [Line 1]–[Line n] .....................................................................................1204.5.3.1 Max Connection .........................................................................................................120Max Connection ......................................................................................................1204.5.3.2 Quality of Service (QoS) ............................................................................................121RTP Packet QoS (DSCP) .......................................................................................121RTCP Packet QoS (DSCP) .....................................................................................1214.5.3.3 Statistical Information ................................................................................................121RTCP Enable ..........................................................................................................121RTCP-XR ................................................................................................................1214.5.3.4 Jitter Buffer ................................................................................................................1228 Administrator Guide Document Version 2014-05Table of Contents