50 likes | 139 Views
Originating operator. Recipient operator. Block operator. Routing options. All Call Query. Choice. Porting. Onward routing. Recipient. Donor. (number + account number). Subscriber active on donor. Subscriber. Requests. RunMyProcess. Preparation Phase. Time. ID and bill check
E N D
Originatingoperator Recipientoperator Blockoperator Routing options All Call Query Choice Porting Onward routing
Recipient Donor (number + account number) Subscriber active on donor Subscriber Requests RunMyProcess Preparation Phase Time ID and bill check either phase Authorisation Request AuthorisationPhase Checks AuthorisationResponse Activation Phase Ported number active on recipient Time limit Issues SIM Activates (no checks) Deactivates Applies onward routing Instruction Overlap Finalisation Instruction blocked by RMP if outside limit Informs all operators Other operators update routing 2
Call routing Home Location Register Mobile Station Roaming Number (MSRN) Where is B-number? Incoming call toB-number Call toMSRN VisitedSwitch Switch Visited network Block network
Call routing SRF/FNR/HLR SRF/FNR/HLR Mobile Station Roaming Number (MSRN) Prefix + B-number Where is B-number? Where is B-number? Incoming call toB-number Call toPrefix + B-number Call toMSRN VisitedSwitch Switch Switch Serving network Block network Visited network 4
Served numbers 1 Served numbers 4 Served numbers 3 Served numbers 2 Central database Operator 1 Operator 2 Broadcasts results Routing All numbers 1+2+3+4 Routing All numbers 1+2+3+4 VPN or Internet Porting process Operator 4 Operator 3 Routing All numbers 1+2+3+4 Routing All numbers 1+2+3+4 Porting