4.5.2.9 Timer Settings ...........................................................................................................111
T1 Timer ..................................................................................................................111
T2 Timer ..................................................................................................................111
Timer B ...................................................................................................................112
Timer D ..
.................................................................................................................112
Timer F ....................................................................................................................112
Timer H ...................................................................................................................112
Timer J ....................................................................................................................113
4.5.2.10 Quality of Service (QoS) ............................................................................................113
SIP Packet QoS (DSCP) .........................................................................................113
4.5.2.11 SIP extensions ...........................................................................................................113
Supports 100rel (RFC 3262) ...................................................................................113
Supports Session Timer (RFC 4028) ......................................................................113
4.5.2.12 NAT Identity ...............................................................................................................114
Keep Alive Interval ..................................................................................................114
Supports Rport (RFC 3581) ....................................................................................114
4.5.2.13 Security ......................................................................................................................114
Enable SSAF (SIP Source Address Filter) .............................................................114
4.5.3 VoIP Settings ................................................................................................................115
4.5.3.1 RTP Settings .............................................................................................................115
RTP Packet Time ....................................................................................................115
Minimum RTP Port Number ....................................................................................115
Maximum RTP Port Number ...................................................................................116
Telephone-event Payload Type ..............................................................................116
4.5.4 VoIP Settings [Line 1]–[Line x] .....................................................................................117
4.5.4.1 Quality of Service (QoS) ............................................................................................117
RTP Packet QoS (DSCP) .......................................................................................117
RTCP Packet QoS (DSCP) .....................................................................................117
4.5.4.2 Statistical Information ................................................................................................118
RTCP Enable ..........................................................................................................118
RTCP Interval .........................................................................................................118
4.5.4.3 Jitter Buffer ................................................................................................................118
Maximum Delay ......................................................................................................118
Minimum Delay .......................................................................................................118
Initial Delay .............................................................................................................119
4.5.4.4 DTMF .........................................................................................................................119
DTMF Type .............................................................................................................119
DTMF Relay ............................................................................................................119
4.5.4.5 Call Hold ....................................................................................................................120
Supports RFC 2543 (c=0.0.0.0) ..............................................................................120
4.5.4.6 CODEC Preferences .................................................................................................120
G722 (Enable) .........................................................................................................120
G722 (Priority) .........................................................................................................120
PCMA (Enable) .......................................................................................................121
PCMA (Priority) .......................................................................................................121
G726–32 (Enable) ..................................................................................................121
G726–32 (Priority) ...................................................................................................121
G729A (Enable) ......................................................................................................121
G729A (Priority) ......................................................................................................122
PCMU (Enable) .......................................................................................................122
PCMU (Priority) .......................................................................................................122
4.6 Telephone ......................................................................................................................122
4.6.1 Call Control ...................................................................................................................123
4.6.1.1 Call Control ................................................................................................................123
Send SUBSCRIBE to Voice Mail Server ................................................................123
Document Version 2013-03 Administrator Guide 7
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