BSNL MNP CALL FLOWSPresented by Sylla VAKANTIE, Alcatel-lucent NGN EngineerFeruary, 2010All Rights Reserved Alcatel-Lucent 2010, feb.PRESE!A!"# PLA"- "!R#$%&!"#""-RE'ERE&ES"""-$E'""!"#S"(-P#S!PA"$ P#R!E$ #%! S&EAR"#S(-P#S!PA"$ P#R!E$ " S&EAR"#S("-# &ALL RELA!E$ )ESSA*E+ S)S &ASE(""-,SL -re-aid call t. a P.rted in nu/ber("""-,SL -re-aid call t. a P.rted .ut nu/berPRESE!A!"# PLA"- "!R#$%&!"#All Rights Reserved Alcatel-Lucent 2010, feb."-"!R#$%&!"#Mobile Number Portability (MNP) is the ability for a mobile subscriber to change the Subscription Network within a portability domain whilst retaining his/her original MSISDN number(s)!"PP specifications define # solutions for MNP implementation$IN based solutionMNP%S&' based solution MNP%S&' based solution is the one chosen by the regulatory (uthoriity in indiaMNP needs some routing capabilities in order to reroute signalling messages related to a ported subscriber inside a portability domain Different options are a)ailable for routing process in portability domain the regulatory (uthoriity in india has chosen * Direct routing + ,his means that any P-MN can route calls directly towards any other in portability domain without in)ol)ing the N&.NAll Rights Reserved Alcatel-Lucent 2010, feb."!R#$%&!"# Implementation of MNP in)ol)e the use of databases which contain information of the networks and associated ported numbers (NPD/) ,his information is used for a call to determine the correct terminating network of a ported number Databases relating to Number Portability are managed either in a centralised or in a distributed manner ,he (uthority recommends that Mobile 0perators through neutral third party shall establish logically centralised database with not more than 1 regionally located databases ""-RE'ERE&ESAll Rights Reserved Alcatel-Lucent 2010, feb.RE'ERE&ES1- Alcatel-lucent !echnical Re0uire/ent S-ecificati.n 1!RS2 .n )P2- 3*PP S-ecificati.n 23.0443- !RA" rec.//endati.ns .n )P"""-$E'""!"#SAll Rights Reserved Alcatel-Lucent 2010, feb.$E'""!"#SMNP$ Mobile number portabilityRN$ &outing number2 needed for call rerouting to the subscription networkNRHN$ Number &ange holder network2 ,he initial network where the number was located before being ported Originating network$ ,he network where the calling party is connected Subscription network$ ,he network where a number is located after being portedMNP-SRF$ Mobile Number Portability% Signaling &elay 'unctionTT$ ,ranslation ,ype2 an S33P addressing parameterGMSC$ "ateway MS3 SCP+ Ser)ice 3ontrol Point(-P#S!PA"$ P#R!E$ #%! S&EAR"#SAll Rights Reserved Alcatel-Lucent 2010, feb.P.rted .ut 1+ A-nu/ber is fr./ ,SL5 ,-nu/ber 6as ,SL but is -.rted .utAll Rights Reserved Alcatel-Lucent 2010, feb.P.st-aid P.rted .ut 1, ,SL78R4) 3all set up#) Send &outing Info 5hen "MS3 recei)es the call set up message2 it re6uests routing information by submitting a M(P S&I to the MNP7S&' ,he ,, in S33P shall be set to 8S&I9!) Send &outing Info (ck5hen the MNP7S&' recei)es the message2 it analyses the MSISDN in the 3dP( and identifies the MSISDN as being ported to another network (s the message is an S&I message2 the MNP7S&' responds to the "MS3 by sending an S&I (ck with a &N : MSISDN; All Rights Reserved Alcatel-Lucent 2010, feb.P.st-aid P.rted .ut 1, ,SL78RMS3 sends back the MS&N ?)Send &outing Information ack (S&I) ,he .-& sends back the roaming number (MS&N) to the "MS3 @) Initial (ddress Message (I(M (MS&N) ,he "MS3 reroutes the call to the >MS3 using the MS&NAll Rights Reserved Alcatel-Lucent 2010, feb.P.rted in 2+ &all is .riginated in ,SL net6.r9 t.6ards an )S"S$ bel.ngs t. an.ther PL) -.rted int. ,SL net6.r9, ,SL 7 subscri-ti.n net6.r9All Rights Reserved Alcatel-Lucent 2010, feb.P.rted in 2, ,SL 7 subscri-ti.n net6.r94) 3all set up message#) Send &outing Information (S&I) ,he "MS3 sends an S&I message towards the MNP7S&' ,he 3alled party number includes the MSISDN and the ,,ABS&IB !) Send &outing Information (S&I) ,he MNP7S&' analyses the MSISDN in the S33P 3dP( and identifies the MSISDN asbeing ported in its network ,he MNP7S&' function relays the M(P message SRI to the .-& MS3 to re6uest an MS&NAll Rights Reserved Alcatel-Lucent 2010, feb.P.rted in 2, ,SL 7 subscri-ti.n net6.r9 1) Pro)ide &oaming number acknowledge (P&N (ck) ,he >MS3 sends back the MS&N?) Send &outing Information ack (S&I),he .-& sends back the roaming number (MS&N)@) Initial (ddress Message (I(M (MS&N) ,he "MS3 reroutes the call to the >MS3("-# &ALL RELA!E$ )ESSA*E+ S)S &ASEAll Rights Reserved Alcatel-Lucent 2010, feb.S)S scenari.1+ S)S-)! t. a )S"S$ -.rted in ,SL net6.r9All Rights Reserved Alcatel-Lucent 2010, feb.S)S scenari.1, ,SL net6.r97Subscriber net6.r94) 'orward SM ,he Ser)ice 3entre (SMS%S3) forwards a short message (SM) to the SMS%"MS3#) S&I for SM,he SMS%"MS37( generates a routing en6uiry for SM deli)ery ,he M(P S&I7for7SM message is routed on MSISDN global title to MNP%S&'!) S&I for SM 5hen MNP%S&' recei)es the message2 the MSISDN in the S33P 3dP( is analyCed ,he MNP%S&' identifies the MSISDN as being ported into the network using information which may be retrie)ed from an NP data base ,he MNP%S&' populates the S33P 3dP( with an .-& address ,he M(P S&I7for7SM message is then routed to .-&All Rights Reserved Alcatel-Lucent 2010, feb.S)S scenari.1, ,SL net6.r97Subscriber net6.r9MS3 by sending a M(P 'orward7SMS messageAll Rights Reserved Alcatel-Lucent 2010, feb.S)S scenari. 2+ S)S-)! t.6ards an )S"S$ -.rted .ut t. an.ther PL) in -.rtability d./ainAll Rights Reserved Alcatel-Lucent 2010, feb.S)S scenari. 2, ,SL7R84)'orward7SM,he Ser)ice 3entre (SMS%S3) of the N&.N forwards a short message (SM) to the SMS%"MS3#) S&I for SM ,he SMS%"MS3 in the N&.N generates a routing en6uiry for SM deli)ery ,he M(P S&I7for7SM message is routed on MSISDN global title to MNP%S&' in N&.N!) S&I for SM5hen MNP%S&' in the N&.N recei)es the message2 the MSISDN in the S33P 3dP( is analyCed ,he MNP%S&' identifies the Subscription Network using information which may be retrie)ed from an NP data base ,he MNP%S&' populates the S33P 3dP( with a concatenation of a routing number (&N) and MSISDN ,he M(P S&I7for7SM message is then routed to MNP%S&' in the Subscription Network

All Rights Reserved Alcatel-Lucent 2010, feb.S)S scenari. 2, ,SL7R8