3.2.2 Editing the ipmedia_r4.cfg Configuration File

Below is an example of the ipmedia_r4.cfg file. Update the following information:

Destination host IP

• IP address of the NIC on the destination GW host

Destination host port

• IP port of the destination GW host

Local host port

• IP port of the local host

first call id

• Demo proprietary call ID. Each gateway must have a unique set of call IDs. This information is transmitted during call negotiation. This value is the first value in the range of call IDs for the gateway.

last call id

• The last value in the range of call IDs for the gateway.

PSTN protocol

• The PSTN protocol supported by the gateway. Possible values are: T1, E1, ISDN (including NFAS), CAS.

DTMF mode

• Specifies how DTMF tones are transmitted. Possible values are: RTPInBand (usually used with G.711 coders), OutOfBand (usually used with low bandwidth coders, e.g., GSM), RTPRFC2833.

VoiceRxCodecs

• Describes the receive voice coder. The parameters are as follows:
  • CoderType

    The type of coder. See the System Release Update for specific information about coder support in this release.

  • CoderFramesPerPkt

    Specify the number of frames per packet for the selected coder. See the System Release Update for specific information about coder support in this release.

  • CoderFrameSize

    Specify the frame size for the selected coder. See the System Release Update for specific information about coder support in this release.

  • CoderVAD

    Specify if VAD is active. See the System Release Update for specific information about coder support in this release.

  • Payload

    Describes the static payload type values for the PT field of the RTP data header as described in RFC 1890.

  • RedPayload

    Describes the static payload type value for the first redundant frame within the packet. This parameter must be set in order for the system to identify the redundant packets.

  • RFC2833Payload

    Describes the static payload type values when sending DTMF according to RFC2833.

VoiceTxCodecs

• Describes the transmit voice coder. See VoiceRxCodecs for a description of the parameters.

Data Codecs

• Describes the fax coder parameters. See VoiceRxCodecs for a description of the parameters.

Quality of Service

• The application can set threshold values to monitor the quality of service during calls. A fault occurs when the result of a measurement of a QoS parameter crossed a predefined threshold. A success occurs when the result of a measurement of a QoS parameter did not cross a predefined threshold. The QoS parameters are measured during time intervals, starting when a call is established. The following parameters are supported:
  • MediaAlarmLostPackets

    indicates that the percentage of packets lost during a call exceeded its threshold value

  • MediaAlarmJitter

    indicates that the jitter (as defined in RFC 1889) exceeded its threshold value

QoS Attributes

• Each parameter has six attributes:
  • Threshold

    defines when a QoS parameter is in a fault condition. A fault occurs when the result of a measurement of a QoS parameter crossed the Threshold value.

  • DebounceOn

    the time during which faults are measured (in msec., must be multiple of Interval)

  • DebounceOff

    the time during which successes are measured (in msec., must be multiple of Interval)

  • Interval

    the amount of time between two QoS parameter measurements (in multiples of 100 msec)

  • Percent_Fail

    the threshold of failures during the DebounceOn time (expressed as a percentage of failures)

  • Percent_Success

    the threshold of successes during the DebounceOn time (expressed as a percentage of successes)

    The default values are as follows:

	Threshold	DebounceOn	DebounceOff	Interval	Percent_ Fail	Percent_ Success
Lost packets	20	10000	10000	1000	60	40
Jitter	60	20000	60000	5000	60	40

DigitMap

• Sets the number of digits to be transmitted when sending DTMF

Sample Configuration File

Destination host IP = 10.242.214.20
Destination host port = 3000
Local host port = 3000
first call id = 1
last call id = 999

# PSTN protocol - possible values: T1 / E1, ISDN (including NFAS), CAS.
PSTN protocol = T1 isdn

Channel = 1 - 30
{
# DTMF modes  - possible values: RTPInBand, OutOfBand, RTPRFC2833.
DTMF mode = rtpinband
	VoiceRxCodecs
	{
		CoderType = g711mulaw
		CoderFramesPerPkt = 1
CoderFrameSize = 30
CoderVAD = 0 
		Payload = 0
RedPayload = 0
		RFC2833Payload = 100
	}
   
VoiceTxCodecs
	{
		CoderType = g711mulaw
		CoderFramesPerPkt = 1
		CoderFrameSize = 30
		CoderVAD = 0 
		Payload = 0
RedPayload = 0
		RFC2833Payload = 100
	}
	DataCodecs
	{
		CoderType = g711mulaw
		CoderFramesPerPkt = 1
CoderFrameSize = 30
		CoderVAD = 0 
		Payload = 0
RedPayload = 0
	}
#QoS
   LostPackets_Threshold       = 20    # Threshold value
   LostPackets_DebounceOn      = 10000 # Threshold debounce ON
   LostPackets_DebounceOff     = 10000 # Threshold debounce OFF
   LostPackets_Interval        = 1000  # Threshold Time Interval (ms)
   LostPackets_PercentSuccess  = 60    # Threshold Success Percent
   LostPackets_PercentFail     = 40    # Threshold Fail Percent
   Jitter_Threshold            = 60    # Threshold value
   Jitter_DebounceOn           = 20000 # Threshold debounce ON
   Jitter_DebounceOff          = 60000 # Threshold debounce OFF
   Jitter_Interval             = 5000  # Threshold Time Interval (ms)
   Jitter_PercentSuccess       = 60    # Threshold Success Percent
   Jitter_PercentFail          = 40    # Threshold Fail Percent
   ResetAlarmState			   = 0
} 
#DigitMap = 1
#{
#	NumOfDigits = 1
#} 
#DigitMap = 2
#{
#	NumOfDigits = 5
#} 
#DigitMap = 3
#{
#	NumOfDigits = 5
#} 
#DigitMap = 4
#{
#	NumOfDigits = 3
#} 
#DigitMap = 5
#{
#	NumOfDigits = 1
#} 
#DigitMap = 6
#{
#	NumOfDigits = 3
#} 

Click here to contact Telecom Support Resources