Mobile Switching Center

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Descriptions

 

The MSC entity is integrated in the MSS. This server is responsible for call control, processing and PSTN access for the UltraWAVE system.

 

 

MSC Parameter Dictionary

 

System

 

Dialing Plan Set >> Dialing Plan

 

Routing Zone Set >> Routing Selection

 

Trunk Group >> Trunk >> CIC Table

 

Location Area >> Cell

 

Media Gateway

 

 

See Also

 

Enable Mobile Call

 

Enable PSTN Call

 

Enable Supplementary Service

 

Enable Emergency Call

 

 

Feature List

 

Feature

Descriptions

Capacity

Traffic (BHCA):

Erlang: 2.5k

Local call: 60k

Outgoing call: 70k

Incoming call: 70k

Location update: 200k

CAMEL handling: 200k

Outgoing SM: 100k

Incoming SM: 100k

Trunk:

1023 trunks (1 to 127 trunk/trunks can be assigned to one trunk group)

1023 MG connections

Interface

SCCP (ANSI T1.112, ITU-T Q)

TCAP (ANSI T1.114, ITU-T Q)

ISUP:

ITU ISUP (ITU 92/97)

ETSI ISUP (ETSI V2)

ANSI ISUP (ANSI T1.113-1995)

UK ISUP (NICC ND1007)

ISDN:

ITU ISDN (Q.931 05/98)

ETSI ISDN (QSIG ECMA-143)

ANSI ISDN (NIS-A233-1)

A interface (ETSI, ANSI, IPA BSC):

BSSMAP: Manage the AIF circuit between MSC and BSC

DTAP: Implement mobility management, call control, supplementary service and SMS to mobile station

SSF (GSM 03.78, 03.18):

CAMEL interface on switch side

MAP 1,2,3 (ETSI, ANSI):

MAP B (to VLR)

MAP C (to HLR)

MAP D (VLR to HLR, for inter-PLMN roaming)

MAP F (to EIR)

MAP E (to SMSC)

CAMEL I, II, III (ETSI, GSM 09.78)

SMPP: Short Message Peer to Peer protocol

SNMP V2: Heartbeat report, parameters maintenance, CDR, statistics

Soft switch:

SIGTRAN:

SCTP (RFC 2960): Provide efficient signaling transport over IP network between SG and MGC (MSC)

M2UA (RFC 3331): Adaptation layer for transport of MTP2

IUA (RFC 3057): Adaptation layer for transport of ISDN Q.921

M3UA (RFC 3332): Adaptation layer for transport of MTP3

MTP3 (ANSI, ITU, SCCP-Lite): Messages between the SG and the MGC

MGCP (RFC 2705): Provide media gateway control function between the MG and MGC (MSC)

BICC (ITU-T Q): Provide call service between soft switches

RTP (RFC 3550): Real time transport of audio packets

SIP (RFC 3261)

Signaling

14-bit/24-bit point code

4 SS7 networks: International, International-spare, National, National-spare

512 linksets, 1024 links

1 to 16 links per linkset (The total number of links should be less than or equal to 1024)

Flexible point code: OPC and DPC per linkset

Network Indicator per linkset

STP (point code and GTT E.164, E.212 and E.214)

Switching and numbering

Uniform numbering plan (NDC dialing plan in HPLMN)

Registered exchange numbering plan (No NDC dialing plan in HPLMN)

Normal routing:

1023 trunk groups, 1023 trunks

1 to 127 trunks per trunk group (the total number of trunks should be less than or equal to 1023)

Support E.164 “+”

Longest-prefix match routing

Called number group routing

Intelligent routing

Number length dependent routing

Alternative trunk group routing

Routing by caller location:

15 dialing plans, each plan defines:

1023 16-digit dialing prefixes or groups

16-digit prefix manipulation for up to 32-digit called number

Calling number manipulation

E.164 international number manipulation

MNP flag

Premium call flag

Support up to 31 routing zones, each routing zone has:

1 dialing plan

Up to 63 routing plans (trunk group)

1 announcement plan

1 AAS/SRF address

Mobility

Location update

IMSI attach/detach

VLR purge

Intra-MSC handover

Inter-PLMN roaming

1023 location areas

Restoration in VLR

Basic services

Telephony full rate speech (TS11)

Emergency call setup (TS12)

DTMF support

Short message service

CDR

Call details records (GSM 12.05)

Call measurement

Call service, origination, destination or trunk based statistics

Mobile originating call

Mobile terminated call

Incoming trunk call

Outgoing trunk call

Mobile to mobile call

Trunk to mobile call

Mobile to IP (Intelligent Peripheral) call

Trunk to IP call

IP terminated call

Mobile to trunk call

Trunk to trunk call

Inter-connection call

Statistics on network traffic basis

Security

Authentication messages and procedures

Enhanced security (Ki encrypted in AUC)

Multiple concurrent A3&A8 algorithms

EIR inter-working, IMEI checking

Ciphering (A5)

TMSI allocation

IN services

Integrated MSC/SSP

Support for CAMEL flags

Billing records for MO, MT, CF calls

Billing records for transit calls

Billing records for SMS

Diagnostic field stored in billing record

CDR generation

SCP directed activation of call limit timing

Supplementary services

Call forwarding

Call forwarding unconditional (CFU)

Call forwarding on subscriber busy (CFB)

Call forwarding on no reply (CFNRy)

Call forwarding on subscriber not reachable (CFNRc)

Call hold

Call waiting

Call barring / Operator determined barring

Premium call

Notification of call barring

Password control

Calling Line Identification Presentation (CLIP)

Calling Line Identification Restriction (CLIR)

Connected line identification presentation (COLP)

Connected line identification restriction (COLR)

Notification of call forwarding

Explicit call transfer

Operator specific barring (OSB)

Three-party call (3PTY)

Unstructured Supplementary Service Data (USSD)

enhanced Multi-Level Precedence and Preemption Service (eMLPP)

Voice codec

Support the negotiation for G.711, G.729, FR, EFR and AMR

Codec negotiation and transcoding

Enhanced codec support for dynamic payloads

Location services

Cell ID based location query

Standard MAP-interface Lg to gateway mobile location center

Support up to 1023 LAC+Cell ID

Call interception

Support lawful call interception

Enhanced service

Support SMS

MO/MT SMS

Short Message Service to and from Application (SMPP)

Short Message Service to other SMSC

Voice mail service

Support SRF

Programmable announcement for unattainable call setup and PPS

Call teardown announcement

Call duration control

Echo canceling (Media Gateway)

Redundancy

Dual switches load sharing and active redundancy

Signaling link redundancy

RTP stream routing redundancy

License control

MSC application flag

8 to 1023 at multiples of 8 trunks

 

 

MSC Parameter Dictionary

 

Parameter

Definition

Range

System

--

--

CDR Option

Control the Call Detail Record generation for different call types.

ON

OFF

MO Max Call Duration

Define the permitted maximum call duration for MO call.

Any ongoing call reaching this threshold will be compulsively cut off.

Set 0 to disable this function.

0 - 255 minutes

0 = No restriction

MT Max Call Duration

Define the permitted maximum call duration for MT call.

Any incoming call reaching this threshold will be compulsively cut off.

Set 0 to disable this function.

Location Number

Specify the location routing number for MNP service.

Numeric max 16 digits

Suspend Timer

If receives ISUP SUSPEND message in an ISUP call, then start the suspend timer to wait for the ISUP RESUME message.

If time out, then send RELEASE to ISUP.

0 - 65535 seconds

eMLPP PCI Option

The enhanced multilevel precedence and  preemption (eMLPP) service provides the capability to classify the mobile subscribers according to a subscriber specific priority.

The preemption capability indicator (PCI) is set when the traffic channel to be assigned may preempt (forced release) an existing connection with a lower priority level (active preemption).

The preemption vulnerability indicator (PVI) is set when the traffic channel to be assigned can be preempted by another connection that might be established later with a higher priority level (passive preemption).

Level A / B:

Enable

Disable

Level 0 - 4:

Enable

Disable

eMLPP PVI Option

Assignment Timer

Specify the maximum waiting time for receiving Assignment Complete message after the Assignment Request message has been sent. Unit is 100 ms.

0 - 255

Paging Timer

Specify the maximum waiting time for receiving Paging Response message after the Paging message has been sent. Unit is second.

Split ETC Number

Allow or forbid splitting the Correlation ID and SCF ID in Establish Temporary Connection message.

Enable

Disable

Dialing Prefix Set

--

Max 15 items

CC

The code that identifies the country's network.

Numeric max 8 digits

NDC

Define the national calling area or national network to which the subscriber belongs.

International Prefix

A digit or combination of digits used by a subscriber when making an international call. The international prefix is used to indicate that the following digits represent an international number and should be routed to an international gateway.

National Prefix

A digit or combination of digits used by a subscriber when calling a national destination (within the country) other than that of the local area network.

HPLMN CC 0~7

Assign up to 8 Country Code to the home PLMN.

Numeric max 16 digits

Number Plan Area

Specify number plan area number for MNP outbound.

Numeric max 8 digits

> Dialing Prefix

--

Max 1023 items

Lookup Method

Select a dialing plan lookup method.

Group Lookup Method has a higher priority than Prefix Lookup Method.

Prefix

Group

Prefix

A combination digits that dial to originate a call. It's only valid when the lookup method selected Prefix.

Numeric max 32 digits

Group Prefix Start

The beginning of the group prefix range. It's only valid when the lookup method selected Group.

Group Prefix End

The end of the group prefix range.

Start prefix and end prefix must have the same length.

Number Attribute

The original type of the incoming number. It is specified by originating node for terminating node to route this call with proper dialed number manipulation.

Unknown

MSISDN

NDD

IDD

Administration State

(Read Only) The state of the current setting entry.

Locked

Unlocked

Number Length

The length of the dialed number.

0 = Length is uncertain

0 - 32

Service Type

Service type of the outgoing call:

Normal = No verification for MT

Emergency Call = No verification for MO (free call)

Intelligent Call = Calls to intelligent peripheral

Emergency Call

Normal Call

Intelligent Call

Emergency Type

Specify index number which associated with the 8 emergency call numbers in Location Area or Cell setting.

0 - 7

Service Key

Specify service hot key which associated with the service key configured in PPS SRF parameters.

0 - 9

Number Type

It determines how the numbers are sent out.

PSTN

MSISDN

MSRN

CLI Type

It determines the format of the Caller Line ID (CLI).

Sub = Unknown(Sub) = "SN"

NDD = "NDC+SN"

Unknown(NDD) = "Nat Prefix+NDC+SN"

IDD = "+CC+NDC+SN"

Unknown(IDD) = "Int Prefix+CC+NDC+SN"

Sub

NDD

IDD

Unknown (Sub)

Unknown (NDD)

Unknown (IDD)

Routing Selection ID

Specify the Routing Selection ID to this Dialing Plan.

1 - 31

CDR Flag

Enable or disable the Call Detail Record generation of this prefix.

Enable

Disable

SRF-MNP Flag

Enable if this prefix relating to SRF MNP service.

IN-MNP Flag (MSC)

Enable or disable IN MNP service when the system performs as MSC.

IN-MNP Flag (GMSC)

Enable or disable IN MNP service when the system performs as GMSC.

Premium Call Flag

Enable if this prefix relating to Premium Call service.

OSB 1 Flag

Subscribers with OSB type 1 can only make calls to this dialing prefix with Call Allow Flag enabled.

OSB 2 Flag

Subscribers with OSB type 2 can't make calls to this dialing prefix with Call Bar Flag enabled.

NAI for Outgoing Call

The transformed type of the incoming number, which will be routed to the associated trunk group.

Unknown

MSISDN

NDD

IDD

PSTN Deletion Count

Number of digits to be deleted from the beginning of the dialed number.

0 - 16

PSTN Inserted Digits

Digits of the number to be added to the front of the dialed number.

Numeric max 16 digits

E.164 Deletion Count

Number of digits to be deleted from the beginning of the  incoming number.

0 -16

E.164 Inserted Digits

Digits of the number to be added to the front of the incoming number to convert it to an international E.164 format.

Numeric max 16 digits

Routing Zone Set

--

Max 31 items

Dialing Prefix Set ID

Specify the Dialing Prefix Set to this Routing Zone.

1 - 15

Announcement Set ID

Specify the Call Unattainable Announcement Set to this Routing Zone.

MSRN Start

The beginning of the MSRN range for this Routing Zone.

Valid E.164 number

MSRN End

The end of the MSRN range for this Routing Zone.

Warning Tone Timer

Specify the time based trigger to play indicating tone for an ongoing prepaid call before the account balance is used up. Unit is second.

0 - 255 seconds

SRF 0 Number

The E.164 node address of the SRF connecting to MSS platform 0.

Valid E.164 number

SRF 1 Number

The E.164 node address of the SRF connecting to MSS platform 1.

> Routing Selection

--

Max 31 items

Trunk Group

Select the Trunk Group for the outgoing routing.

1 - 255

Alternative TG Flag

Enable or disable alternative Trunk Group when the primary Trunk Group is unavailable.

Enable

Disable

Alternative TG

Specify the alternative Trunk Group. It's available only when the previous Alternative TG Flag is enabled.

0 - 255

NAI for Outgoing Call

Select the required Network Address Identifier (NAI). The NAI option enables the MSC to perform call routing.

Unknown

MSISDN

NDD

IDD

Deletion Count

Number of digits to be deleted from the beginning of the dialed number.

0 - 16

Inserted Digits

The digits to be inserted to the front of the dialed number.

Numeric max 16 digits

Trunk Group

--

Max 1023 items

Administration State

(Read Only) Control the operation of the managed Trunk Group.

Locked

Unlocked

Operation State

(Read Only) Indicate the current Trunk Group operation is qualified by Availability State.

Enabled

Disabled

Availability State

(Read Only) Qualify Operation State providing details about the current operational state.

Failed

Off Line

On Line

Dependency

Degraded

OPC

The Originating Point Code of the current TG.

ITU = 1 - 16383

ANSI = 1 - 16777215

DPC

The Destination Point Code of the current TG.

NI

Network Indicator specifies the Trunk Group to a network.

National

National Spare

International

International Spare

Protocol Type

Select the protocol type for this Trunk Group.

AIF

ISUP

BICC

ISDN

SIP

Static Connection

Protocol Variant

Select the protocol variant for this Trunk Group.

ITU

ETSI

ANSI

UK

Q.Sig

Local Domain

(For SIP) Define the local domain name for a SIP TG.

--

Destination Domain

(For SIP) Specify the destination domain name for a SIP TG.

--

Destination IP 0 - 1

(For SIP) Specify the destination IP address for a SIP TG.

Dotted decimal format

Destination Port

(For SIP) Specify the destination port for a SIP TG.

--

Remote Process ISUP

(For SIP) Indicate whether the remote SIP UA is able to process ISUP in SIP-ISUP interworking.

Support

Not Support

Incoming SIP Calls TON

(For SIP) Manipulate the type of calling number for a SIP TG. It doesn't take effect when the calling number's attribute is International.

It is used for Calling Line Identification Presentation (CLIP) of incoming SIP calls.

CLIR

Subscriber

Unknown

NDD

IDD

Circuit Selection

Circuit selection mode of the traffic channel connections.

Clockwise

Anti-clockwise

Odd

Even

Back Off Flag

Enable or disable Back Off when simultaneously select the same channel with the opposite side.

Enable

Disable

Tandem Restriction

Enable or disable Tandem to allow or prohibit transit calls from PSTN to PSTN via this trunk group.

CDR Flag

Enable or disable the Call Detail Record generation of this trunk group.

TG Type

Application type of this Trunk Group.

Normal

Inter-connection of MSS0

Inter-connection of MSS1

RZS ID

Specify the Trunk Group to a Routing Zone Set.

255 = Apply to all Routing Zone Sets

1 - 31, 255

Alternative RZS Trigger

Specify the Trunk Group to an alternative Routing Zone Set for backup purpose.

0 = Disable Alternative Routing Zone

0 - 31

Ignore MNP Info

(For MNP) In the MNP port-in processing, enable to ignore the optional parameters in the incoming IAM message.

Enable

Disable

Signal Ported Number

(For MNP) In the MNP port-out processing, enable to ignore the optional parameters in the outgoing IAM message.

NFAS Flag

(For ISDN) Enable or disable Non-Facility Associated Signaling with D Channel Backup feature.

Primary Link

(For ISDN) Specify the primary D channel to control multiple trunks.

One of trunk ID listed in the trunk entries.

Backup Link

(For ISDN) Specify a backup D channel for use when the primary NFAS D channel fails.

BSC Codec

Specify the codec type of the BSC. It is available only for circuit BSC.

Entry 0 is the highest priority, entry 13 is the lowest.

FR, EFR, AMR

Echo Control Device Indicator

Indicate including echo control device in outbound IAM message or not.

Enable

Disable

Satellite Indicator

Specify the bearing value of the Satellite Indicator in the outgoing ISUP IAM message.

Transit = Use the same value from the incoming ISUP IAM message.

No Satellite Circuit

One Satellite Circuit

Two Satellite Circuits

Transit

> Trunk

--

Max 1023 items

Administration State

(Read Only) Control the operation of the managed Trunk.

Locked

Unlocked

Operation State

(Read Only) Indicate the current Trunk operation is qualified by Availability Status.

Enabled

Disabled

Availability State

(Read Only) Qualify Operation State providing details about the current operational state.

Failed

Off Line

On Line

Dependency

Degraded

MG ID

Specify the Trunk to a Media Gateway. Not applicable to virtual MG.

1 - 255

Port ID

Specify the Trunk to a physical port of the selected Media Gateway. Not applicable to virtual MG.

0 - 31

Port Type

Specify the type of MG physical ports.

E1, T1, Analogue

Group ID

Select the application group for the Trunk.

Group0 = Master is MSC0

Group1 = Master is MSC1

Group0

Group1

Supervision Method

Specify the type of block request indication delivered in the ISUP trunk initialization process.

Circuit Group

Circuit

Link ID

(For ISDN) Specify the corresponding IUA link ID which is configured in the MTP3 setting.

0 - 1023

User Network Interface

(For ISDN) Select Q.931 switch type for ISDN call processing.

Network Side

User Side

CIC Assignment

Specify the start CIC to the Trunk for typical mode.

E1 = 0, 32, 64 ...

T1 = 0, 24, 48 ...

0, 32, 64 ...

0, 24, 48 ...

Channel in Use

(Read Only) Display the quantity of occupied channels of this trunk in real-time.

0 - 32

> > CIC Table

--

Max 32 items

Channel Type

Specify the type of the channel.

Disable

Incoming

Outgoing

Bi-directional

Lease line

D-channel

X-channel

Channel CIC

Assign a Circuit Identity Code to the channel.

0 - 65535

Channel Status

(Read Only) The current status of the serving channel.

Out of Service

Idle

Busy

iPALIM Used

Local Block

(Read Only) Display the block error if the channel is out of service.

Blocked

Unblocked

Remote Block

Location Area

--

Max 1023 items

LAC

Specify the Location Area Code of this location area.

1 - 65535

Trunk Group

Specify the serving Trunk Group of this location area.

1 - 1023

Paging Mode

Paging messages broadcast in the specified location area or in the whole network.

By LAC

By Cells

Repeat Paging Times

Specify the subsequent paging times if the initial paging fails.

0 - 3

NITZ

Network Identity and Time Zone.

--

Coding Scheme

Indicate that 7-bit or UCS2 coding scheme is used.

7-bit

UCS2

Add CI

Indicate whether the MS should add the letters for the Country's Initials to the text string.

ON

OFF

Network Name

A text string is to pass to the MS via NITZ.

--

Time Update Option

Determine whether time and time zone info is transferred to MS via NITZ.

None

Time Zone

Time Zone and Time

Time Zone

Specify the local time zone.

GMT-12:00 - GMT+13:00

Daylight Saving Time

Enable or disable the daylight saving time adjustment.

No Adjustment

+ 1 Hour

+ 2 Hours

Emergency Number 0~7

The emergency number, which subscriber dialed in the specific Location Area, will be transformed to this number and route to the emergency center.

3 - 16 digits

> Cell

--

Max 15 items

RZS ID

Specify the Routing Zone Set ID to this Cell.

1 - 31

RSZC

Assign a Regional Subscription Zone Code to the LAC.

Regional Subscription Zone Code = CC+NDC+Zone Code

0 - 65535

Cell ID

Global Cell Identity defined in GSM 03.03

0 - 65535

Latitude

Specify the latitude of this cell for a location service use.

-90.00 to 90.00

Longitude

Specify the longitude of this cell for a location service use.

-180.00 to 180.00

Emergency Number 0~7

The emergency number, which subscriber dialed in the specific Cell, will be transformed to this number and route to the emergency center.

3 - 16 digits

Media Gateway

--

Max 255 items

Administration State

(Read Only) Control the operation of the managed MG.

Locked

Unlocked

IP

IP address of the MG.

Dotted decimal format

Domain Name

Specify a domain name to the Media Gateway.

--

Switching Mode

Select the switching mode of the specified MG.

8ECP = Circuit Switch (8KE1)

MGCP = Soft Switch (MG)

8ECP

MGCP

Endpoint

Specify the method of MGCP endpoint description.

Structured

Unstructured

Unstructured Hex

Tone Generation Capacity

Enable if the Media Gateway has tone generation capability.

Enable

Disable

MG Type

Select the type of MG endpoint.

IP BSS

VIM

Digital Channel

AudioCodes

Announcement Server

IVR

Conference Bridge

Packet Relay

Wiretap

ATM

Max Ports

The total physical port number of the MG. Not applicable to virtual MG.

0 - 31

Max Channels

The total channel number of the virtual MG. Applicable to virtual MG only.

0 -1023

Packetization Period

The period over which encoded voice bits are collected for encapsulation in.

20ms

40ms

60ms

80ms

Priority Level

Set the priority level of the MG codec table:

0 = Lowest priority level

255 = Highest priority level

0 - 255

Codec Type

Specify the preferred codec type using between MG and MSC. Entry 0 is the highest priority, entry 15 is the lowest.

A-Law

Mu-Law

FR

EFR

AMR

G729

Audit Timer

The time interval between sending AUEP message from MGC to MGW to check the trunk status. Unit is second. Set 0 to disable.

0 - 255

> Port

--

Max 32 items

Used Flag

(Read Only) The status of the MG port.

Idle

In Use

Status

(Read Only) The status of the serving channel.

Ready

Not Ready

Seizure Trunk

(Read Only) The hyperlink of the bound Trunk for the in use MG port.

Format = Trunk <TG ID>-<Trunk ID>

--

 

 

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2.1.1.1