# IP Private A-link Intelligent Multiplexer

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Descriptions

IP Private A-link Intelligent Multiplexer (iPALIM) is an application server of the UltraWAVE soft switch system to connect the local Inter-Reach Office (IRO) network to Public Mobile Network (PLMN) via A-interface. It allows the IRO to perform as a self-contained GSM system or a virtual BSC of the PLMN, depending on the desired service and user type. iPALIM monitors the messages originated by a subscriber to determine his user type, and selects the optimal way to route the call.

iPALIM provides two types of services - private service and public service.

•iPALIM routes calls of private users to the local MSC for local switching within the IRO network. The private users may also make calls to local PSTN or PBX if it is attainable.

•For public users, iPALIM routes calls to the PLMN MSC, bypassing the IRO soft-switch. iPALIM makes IRO appears as a BSC to the PLMN MSC. iPALIM is transparent to the user and to the IRO MSC. Moving into and out of the IRO is seamless to the public user.

See Also

• iPALIM Parameter Dictionary

• Enable iPALIM Service

Feature List

Feature | Descriptions
Capacity | Up to 100k subscribers (Private users + Hybrid/Public users)
Interface | A interface to public PLMN MSC SNMP interface to EMS
Voice Services | Telephony: •Private to private call •Private to hybrid call •Hybrid to private cal •Hybrid to public call •Public to public call Emergency call DTMF
Data Services | Data and Fax

Supplementary Services

Call forwarding:

•Call forward unconditional (CFU)

•Call forward on busy (CFB)

•Call forward on not reply (CFNRy)

•Call forward on not reachable (CFNRc)

Call barring / Operator determined barring

•Barring of All Outgoing Calls (BAOC)

•Barring of Outgoing International Calls (BOIC)

•Barring of All Incoming Calls (BAIC)

Calling line identification presentation (CLIP)

Calling line identification restriction (CLIR)

Connected line identification presentation (COLP)

Connected line identification restriction (COLR)

Call hold (all the call parties are in the same user type)

Call waiting (all the call parties are in the same user type)

Explicit call transfer (ECT) (all the call parties are in the same user type)

3-party call (all the call parties are in the same user type)

Premium call (private user only)

Password control (private user only)

Operator specific barring (OSB) (private user only)

Barring of Outgoing International Calls except those directed towards the Home PLMN Country (BOIC-exHC) (public user only)

Barring of Incoming Calls when Roaming outside the home PLMN country (BIC-Roam) (public user only)

NOTE: Hybrid users’ supplementary services are set up by the operator, they aren’t user alterable.

Enhanced Services | Short message service Voice mail service USSD service Prepaid services Network Identity and Time Zone (NITZ) service Virtual calling card service

Featured Services

Hybrid user auto-registration

Exclusive access:

•Public exclusive: Allow or forbid Public users to login the local IRO

•Hybrid exclusive: Allow or forbid Hybrid users to login the local IRO

•Private exclusive: Allow or forbid Private users to login the local IRO

Registration control (256 IMSI prefixes):

•Set the “IMSI Prefix List” as Registration Control White List or Black List

•White list: Allow IMSI prefixes in the white list to register to the local IRO

•Black list: Forbid IMSI prefixes in the black list from registering to the local IRO

iPALIM A interface gateway

Accurate paging

Inter BSC handover

Intelligent RTP local switching

Intelligent Gb Routing

Redundancy | Dual servers load sharing and active redundancy
License Control | Application flag 10 to 100k iPALIM subscribers at multiples of 100
Operation and Maintenance | SNMP network management IE browser client console Web page based graphic user interface Real time status display System parameter maintenance Subscriber profile maintenance (import, modify, add and delete) Organized call measurements and operation logs SMCLI interface to read, create, modify, and delete subscribers

iPALIM Parameter Dictionary

Parameter | Definition | Range
System | -- | --
•PSTN Routing | Select the outgoing route for Hybrid user PSTN calls. •Local = Route PSTN calls to the MSC trunk group pointing towards PBX. •Remote = Route PSTN calls to the iPALIM trunk group pointing towards remote PLMN. | •Local •Remote
•Emergency Routing | Select the outgoing route for Hybrid and Private user emergency calls. •Local = Route emergency calls to the MSC trunk group pointing towards PBX. •Remote = Route emergency calls to the iPALIM trunk group pointing towards remote PLMN.
•UES Flag | Enable or disable User Equipment Simulator function. It should be enabled to support iRLS function. | •Enable •Disable
•SMSC Address | E.164 local node of Short Message Center. | Valid E.164 number
•Idle Period to Purge | System purges Public users from iPALIM database when they have been idle for the amount of time. Unit = Hour. | 0 - 240
•Public Exclusive | Allow or forbid Public users to login the local IRO. | •OFF = Allow •ON = Forbid
•Private Exclusive | Allow or forbid Private users to login the local IRO.
•Hybrid Exclusive | Allow or forbid Hybrid users to login the local IRO.
•Hybrid Priority | Allow or forbid the Hybrid users to use private service when iPALIM A-interface link is failed. | •Public = Forbid •Private = Allow
•Max License | (Read Only) The maximum subscriber capacity of iPALIM determined by License Control. | 0 - 100,000
Hotline Number | -- | --
•Language 0 - 7 | Registration hotline number for Public user to self-create Hybrid user account in the IRO network coverage. | --
UES MT MSISDN | -- | Max 8 items
•MSISDN | When the UES Flag is enabled, assign virtual number for User Equipment Simulator to create IMSI - MSISDN table. | Valid E.164 number
Trunk Group | -- | Max 8 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. | •Off Line •On Line
•OPC | Originating Point Code. Point Code of the local IRO network. | ITU = 1 - 16383 ANSI = 1 - 16777215
•DPC | Destination Point Code. Point Code of the remote PLMN network.
•Network Indicator | Specify the Trunk Group to one of the four networks. | •International •International Spare •National •National Spare
•Protocol Type | (Read Only) The protocol type for this Trunk Group. | AIF
•Application Type | (Read Only) Application type of this Trunk Group. | Out
> Trunk | -- | Max 32 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 State. | •Enabled •Disabled
•Availability State | (Read Only) Qualify Operation State providing details about the current operational state. | •Off Line •On Line
•MG ID | Specify the Trunk to the Media Gateway which has been configured in the following MG setting table. | 0 - 255
•Port ID | Specify the Trunk to one of the physical ports on the selected Media Gateway. | 0 - 255
•Port Type | Specify the type of MG physical ports. | •E1 •T1
•Group ID | Select the application group for the Trunk. •Group0 = Master is MSS0 •Group1 = Master is MSS1 | •Group0 •Group1
•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 ...
Media Gateway | -- | Max 8 items
•Administration State | (Read Only) Control the operation of the managed MG. | •Locked •Unlocked
•IP | IP address of this Media Gateway. | Dotted decimal format
•Domain Name | Specify a domain name to the Media Gateway. | --
•Switching Mode | (Read Only) Switching mode of the specified Media Gateway. | MGCP
•Endpoint | (Read Only) The method of MGCP endpoint description. | Structured
•Type | Select the type of MG endpoint. •AudioCodes = E1 connection via AudioCodes •PALIM = IP connection to PLMN | •AudioCodes •PALIM
•Max Physical Ports | The total physical port number of the Media Gateway. | --
•Max Channels | The total channel number of the virtual MG. Applicable to virtual MG only. | --
•Packetization Period | The period over which encoded voice bits are collected for encapsulation in. | •x20ms •x40ms •x60ms •x80ms
•Codec Type | Specify the codec type of the Media Gateway. | --
•Audit Timer | The time interval between sending AUEP message from MGC to MGW to check the trunk status. Unit is second. | 1 - 255
Location Area | -- | Max 256 items
•Type | (Read Only) Application type of this Location Area. | Out
•LAC | Location Area Code. Assigned by PLMN operator. | --
•MCC | Mobile Country Code. Assigned by PLMN operator. | --
•MNC | Mobile Network Code. Assigned by PLMN operator. | --
•Cell ID | Global Cell Identity defined in GSM 03.03. Assigned by PLMN operator. | --
•Trunk Group | Combine the routing Trunk Group with the specified cell. | --
Registration | Specify the user range to register to the iPALIM network. | --
> Registration Control | -- | --
•Status | Enable or disable operator to control what mobile users are allowed (white-list) or disallowed (black-list) to register to the iPALIM network. | •Disabled •White-list •Black-list
•LU Reject Cause | Specify the rejection cause in Location Area Updating Reject message sending to forbidden visitors. | •PLMN not allowed •LA not allowed •Roaming not allowed in this LA
> IMSI Prefix List | -- | Max 256 items
•IMSI Prefix | If an IMSI prefix is a 15-digit number then it is a single IMSI number. If it is shorter than 15 digits then all the numbers begin with this prefix are under control. | Numeric max 15 digits

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