3.2.2 Editing the gateway_r4.cfg Configuration File

Below is an example of the gateway_r4.cfg file. Update the following information:

Source

Source (originator) address

The following prefixes must be used when describing a source or destination address:

Prefix	Type	Description
NAME:	H323-ID	H323-ID is an "alias address," such as "Intel Corp.," usually resolved by a gatekeeper. The H323-ID consists of a string of ISO/IEC 10646-1 characters as defined in H.225.0. It may be a user name, conference name, email name, or other identifier.
TEL:	e164	A unique numeric phone number
TA:	Target Address	The IP address of the remote gateway

Destination

IP address of the NIC on the destination GW host. See Source (originator) address for a description of the prefixes that must be used.

RemotePhoneNumber

Destination phone number to call. It is transferred during call establishment to target gateway.

LocalPhoneNumber

The number used for PSTN calls

pstnProtocol

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

DTMFmode

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.

ipProtocol

The IP Protocol used for opening the IP line devices. Values are: H323, SIP, both.

AudioRxCodecs

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.

• CoderVAD

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

AudioTxCodecs

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

Data Codecs

Describes the fax coder parameters. See AudioRxCodecs 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

Display

Display information passed to destination gateway during call establishment

IPT_UUI

User to User Information string. The information is sent before the Connected state.

UII

User Input Indication string to send. The maximum string length is 256 characters (MAX_STRING).

NonStdParm

Non-standard parameter data to send

NonStdCmd

Non-standard command string to send. The maximum string length is 256 characters (MAX_STRING).

ObjId

Object ID

Q931Facility

Facility data to send on the Q.931 channel. The maximum string length is 256 characters (MAX_STRING).

Sample Configuration File

Channel = 1-120
{
   Source = NAME:Dialogic Corp.
   Destination = TA:10.242.214.25
   RemotePhoneNumber = 23
   LocalPhoneNumber = 26
   pstnProtocol = isdn
   DTMFmode = inBand
   ipProtocol = H323 
   AudioRxCodecs
   {
		CoderType = g711mulaw
		CoderFramesPerPkt = 30   
		CoderVAD = 0 		
   } 
      AudioTxCodecs

   {
		CoderType = g711mulaw
		CoderFramesPerPkt = 30 
		CoderVAD = 0  
   } 
   DataCodecs
   {
		CoderType = t38
   } 
   MediaAlarmLostPackets
   {
       Threshold       = 20    # Threshold value
       DebounceOn      = 10000 # Threshold debounce ON
       DebounceOff     = 10000 # Threshold debounce OFF
       Interval        = 1000  # Threshold Time Interval (ms)
       PercentSuccess  = 60    # Threshold Success Percent
       PercentFail     = 40    # Threshold Fail Percent
   } 
   MediaAlarmJitter
   {
       Threshold            = 60    # Threshold value
       DebounceOn           = 20000 # Threshold debounce ON
       DebounceOff          = 60000 # Threshold debounce OFF
       Interval             = 5000  # Threshold Time Interval (ms)
       PercentSuccess       = 60    # Threshold Success Percent
       PercentFail          = 40    # Threshold Fail Percent
   } 
   Display = GATEWAY_Chan1
   IPT_UUI = User_to_User_1
   UII = 12345
   NonStdParm = NSP_Chan1
   NonStdCmd = NSC_Chan1
   ObjId = 2 16 840 1 113741
   Q931Facility = facility 01
} 

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