3.6.2.2 SIP Server ...................................................................................................................86Registrar Server Address ..........................................................................................86Registrar Server Port ................................................................................................86Proxy Server Address ...............................................................................................86Proxy Server Port ......................................................................................................86Presence Server Address .........................................................................................87Presence Server Port ................................................................................................873.6.2.3 Outbound Proxy Server ...............................................................................................87Outbound Proxy Server Address ..............................................................................87Outbound Proxy Server Port .....................................................................................873.6.2.4 SIP Service Domain ....................................................................................................88Service Domain .........................................................................................................883.6.2.5 SIP Source Port ...........................................................................................................88Source Port ...............................................................................................................883.6.2.6 SIP Authentication .......................................................................................................88Authentication ID .......................................................................................................88Authentication Password ..........................................................................................893.6.2.7 DNS .............................................................................................................................89Enable DNS SRV lookup ..........................................................................................89SRV lookup Prefix for UDP .......................................................................................89SRV lookup Prefix for TCP .......................................................................................903.6.2.8 Timer Settings .............................................................................................................90T1 Timer ....................................................................................................................90T2 Timer ....................................................................................................................90INVITE Retry Count ..................................................................................................90Non-INVITE Retry Count ..........................................................................................913.6.2.9 Quality of Service (QoS) ..............................................................................................91SIP Packet QoS (DSCP) ...........................................................................................913.6.2.10 SIP extensions .............................................................................................................92Supports 100rel (RFC 3262) .....................................................................................92Supports Session Timer (RFC 4028) ........................................................................923.6.2.11 Keep Alive ...................................................................................................................92Keep Alive Interval ....................................................................................................923.6.2.12 Security ........................................................................................................................93Enable SSAF (SIP Source Address Filter) ................................................................933.6.3 VoIP Settings ..................................................................................................................933.6.3.1 RTP Settings ...............................................................................................................93RTP Packet Time ......................................................................................................93Minimum RTP Port Number ......................................................................................94Maximum RTP Port Number .....................................................................................943.6.4 VoIP Settings [Line 1]–[Line 8] .......................................................................................953.6.4.1 Quality of Service (QoS) ..............................................................................................95RTP Packet QoS (DSCP) .........................................................................................953.6.4.2 Statistical Information ..................................................................................................96RTCP Interval ...........................................................................................................963.6.4.3 Jitter Buffer ..................................................................................................................96Maximum Delay ........................................................................................................96Minimum Delay .........................................................................................................97Initial Delay ...............................................................................................................973.6.4.4 DTMF ...........................................................................................................................97DTMF Type ...............................................................................................................97Telephone-event Payload Type ................................................................................983.6.4.5 Call Hold ......................................................................................................................98Supports RFC 2543 (c=0.0.0.0) ................................................................................983.6.4.6 CODEC Settings ..........................................................................................................986 Administrator Guide Document Version 2010-08Table of Contents