MNP

Mobile Number Portability (MNP) system is a software application that provides ability for mobile subscribers to change the GSM subscription network within a portability domain whilst retaining their original MSISDNs. Number portability is a key aspect of deregulation in telecommunications. To ensure that there is competition in the marketplace for telecommunications services, the formerly fixed association between the service provider and the directory number has been broken. Numbers now are seen as the property of the service subscriber, who should be able to make an independent decision about which service provider to use.

In GSM networks, a new SIM card and a new IMSI are supplied to the subscriber during porting. However, the original MSISDN is retained.

Feature	Descriptions
Capacity	20k MNP subscribers, capable of expansion
Solution	MNP-SRF ANSI IN-Query (support in phase 2)
MNP	Mobile Number Portability, ability allowing customers change service provider while retaining an existing mobile phone number MNP to different networks (with different CC or NDC) Independent software module deployed with MSS server Support telephony and SMS for MNP MT
NPDB	Number Portability DB, stores all ported subscribers Network (operator) independent Synchronized between networks
RN	Routing Number, identify each PLMN in the portability domain Used by ported MSISDN for addressing subscription (port-to) network
Load sharing	Dual servers load sharing and active redundancy
License control	Application flag 10 to 20k MNP subscribers at multiples of 100

Parameter	Definition	Range
System	--	--
•MNP Flag	Enable or disable Mobile Number Portability function.	•Enable •Disable
•NPLR Number	The E.164 node address of the Number Portability Location Register.	Valid E.164 number
•Routing Number	A specific number which is part of the routing information, used by the network to route the call and the non-call related signaling messages.	Numeric max 16 digits
•Routing Method	For every call or non-call related transaction initiated from local network, the MSC can select one of the two following routing conventions: •Direct: route the calls directly from the PLMN to the ported subscriber's network. •Indirect: route the calls from the PLMN to the ported subscriber’s subscription network via the number range holder.	•Direct •Indirect
•RN Position	The routing number will be attached to the called number in the portability database. This parameter specifies the digit position of the called number to append the routing number.	1 - 16
•MNP Solution	Select a solution for call related signaling in the ETSI MNP-standard.	•IN-based •MNP-SRF
Local Prefix	--	Max 32 items
•Prefix	Specify prefixes of E.164 numbers using in the local network.	Numeric max 16 digits
Portable Prefix	--	Max 128 items
•Prefix	Specify prefixes of E.164 numbers that can be ported among networks.	Numeric max 16 digits