H248 Tab
The H248 tab is used to define the layer of the Mc interface between the (G) MSC and the Media Gateway. H248 Protocol is used to control the user plane bearer for call session, and the user plane transport interface between the MGW and IM-MGW which uses IP/UDP/RTP protocol.
H248 (MEGACO) supports a separation of call control entities from bearer control entities and a separation of bearer control entities from transport entities.
Related Measurements
Measurements collected for H248 related processing are reported on the Mc report tab.
General
| Retries |
Enter the number of times to re-transmit (Retry) a message after a timeout occurs.
Range: 1 to 10
Default: 5
Tcl Parameter: McRetries
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| Retry Time (ms) |
Enter the Retry Time (ms). The amount of time to wait for a response.
Range: 100 — 30000
Default: 2000
Tcl Parameter: McRetryTime
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| Protocol Version |
Select the Protocol Version supported on the MGW Node.
Options: 2 (Default) or 3
Tcl Parameter: McProtoVer
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| Reason |
Select Service Change Reason when registering the MGW to MGC.
Options: Cold Boot (Default) or Warm Boot
Tcl Parameter: McReason
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| Activate Interworking Function |
Use checkbox to enable Activate Interworking Function (per 3GPP TS 23.231). The"Interworking Function" is based on the "PLMN Bearer Capability" of the bearer Termination. The activation of the possible "Interworking Function" in both bearer terminations will be requested by the MSC Server at reception of the SIP 200 OK (INVITE) response.
Default: False
Tcl Parameter: McActIwfEn
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| Activate Voice Processing Function |
Use checkbox to enable Activate Voice Processing Function to achieve desired acoustic quality on the bearer terminations. The MSC server shall request the activation of voice processing functions in the bearer terminations. For Non-speech calls, the MSC server has the ability to instruct the MGW to disable the voice processing functions.
Default: False
Tcl Parameter: McActVpfEn
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Access Termination - Used to specify TDM termination IDs on the MGW.
| Starting PCM System |
Enter the Starting PCM - Shelf, Slot and E1/T1.
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Shelf
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Enter the Shelf.
Range: 0 — 255
Default: 0
Tcl Parameter: McStartShelfNum
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Slot
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Enter the Slot.
Range: 0 — 255
Default: 0
Tcl Parameter: McStartSlotNum
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E1/T1
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Enter the E1/T1.
Range: 0 — 255
Default: 0
Tcl Parameter: McStartIntNum
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| Number of PCM Systems |
Enter the Number of PCM Systems - Shelf, Slot and E1/T1.
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Shelf
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Enter the Shelf.
Range: 0 — 256
Default: 8
Tcl Parameter: McNumOfShelf
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Slot
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Enter the Slot.
Range: 0 — 256
Default: 8
Tcl Parameter: McNumOfSlot
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E1/T1
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Enter the E1/T1.
Range: 0 — 256
Default: 8
Tcl Parameter: McNumOfInt
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| Number of Timeslots per E1/T1 Interface |
From drop down menu - select Number of Timeslots per E1/T1 Interface.
Range: 32 (Default), 24
Default: 32
Tcl Parameter: McNumTsPerInterface
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CN Termination - Used to specify attributes for CN RTP termination.
| Termination Heartbeat Timer (s) |
Enter Termination Heartbeat Timer (s) - A 0 means no heartbeat message..
Range: 0 to 65535
Default: 0
Tcl Parameter: McTermHeartBeatTimer
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| Payload Type |
Enter Payload Type
Range: 97 to 127
Default: 98
Tcl Parameter: McPayloadType
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| Codec |
From drop down menu - select Codec Type.
Range: AMR, AMR-WB
Default: 32
Tcl Parameter: McCodec
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| RTCP Bandwidth RR |
Enter RTCP Bandwidth RR.
Range: 0 and 1000
Default: 0
Tcl Parameter: McRtcpBwRr
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| RTCP Bandwidth RS |
Enter RTCP Bandwidth RS.
Range: 0 and 1000
Default: 0
Tcl Parameter: McRtcpBwRs
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