<initiator>
Specifies terminal node that initiates the call.
This is a mandatory parameter.

<receiver>
Specifies terminal node to which the call is destined.
This is a mandatory parameter.

<average talk time>
Specifies average talking time when a terminal starts talking.
This is a mandatory parameter.

<start time>
Specifies time when the initiating terminal sends a call
 establishment request to the receiver for the voice
 onversation.
This is a mandatory parameter.

<end time>
Specifies time when the conversation ends. If end time
 is specified as 0, then conversation continue until
 SIMULATION-TIME expires.
This is a mandatory parameter.

CALL_STATUS <call status>
Specifies call status. The call status may be ACCEPT
 or REJECT. When this is set to ACCEPT, the receiver
 will receive the call. When this is set to REJECT,
 the receiver will reject the call and there will be
 no conversation. This is an optional parameter and
 when not set, the call will be received by default.

ENCODING <codecname>
Specifies codec to use when transmitting RTP packets.
 The permissible values are G.711, G.729, G.723.1ar6.3,
 G.723.1ar5.3, G.726ar32, G.726ar24 or G.728ar16.
This is an optional parameter. If the user-specified
 string does not match any of the above mentioned
 values or the user does not specify any encoding
 scheme, the default value G.711 is used to establish
 the call.

PACKETIZATION-INTERVAL <packetization interval>
Specifies interval at which VoIP application sends
 packets to RTP. This is an optional parameter.
The default value is 20MS for the codecs G.711,
 G.729, G.726ar32 and G.726ar24. The default value
 is 30Ms for G.723.1ar6.3, G.723.1ar5.3 and G.728ar16.

PRECEDENCE <precedencevalue>
Specifies 3-bit Precedence value of the IP header
 for the packets generated.  The range is from 0 to 7.
This is an optional parameter. The default value is 0.
Note: At most, one of the three parameters PRECEDENCE,
 DSCP, or TOS can be specified.

DSCP <dscp value>
Specifies 6-bit DSCP value of the IP header for the
 packets generated. The range is from 0 to 63.
This is an optional parameter. The default value is 0.
Note: At most, one of the three parameters PRECEDENCE,
 DSCP, or TOS can be specified.

TOS <tos value>
Specifies 8-bit TOS value of the IP header for the
 packets generated. The range is from 0 to 255.
This is an optional parameter. The default value is 0.
Note: At most, one of the three parameters PRECEDENCE,
 DSCP, or TOS can be specified.

[<node-ID>] VOIP-CONNECTION-DELAY <delay>
Specifies delay from the start of the alerting/ringing
 to the time that the called party receives the call.
The default value is 8 seconds.

[<node-ID>] VOIP-CALL-TIMEOUT <duration> Specifies
 maximum delay, from the initiation of the call,
within which the caller can get an answer to the call.
 After this delay, the call will be rejected.
 As a rule of thumb, the call timeout should be at 
least four times the connection delay. The default 
value is 60 seconds

[<node-ID>] VOIP-TOTAL-LOSS-PROBABILITY <probability>
Specifies total loss probability (expressed as a percentage).
The loss probability is used in MOS Calculation. The default value is 5.07.