Link2One. Full Functionality that Is Easy to Implement

One connection to Link2One provides voice, data, CAMEL, 3G, GPRS and SMS roaming functionality.

Implementation and Operation graph

The Principles of SS7 Implementation

To implement SS7, which is the first and basic International Roaming service, your SS7 carrier will open the path to Link2One, and then you'll use a centralized signaling link that is established with the Link2One Hub. Only a minor implementation with your international carriers is needed. Apart from that, there is minor configuration in your own network relating to details of the HPMN (home public mobile network)

  • For SCCP (Signaling Connection Control Part) routing, SMSC (short message service center) global titles must to be routed towards the Hub and IMSI (nternational mobile subscriber identity) will be mapped to the Link2One Hub MGT
  • MTP (message transfer part) routing requires no new ISPCs (International Signaling Point Codes) as all signaling messages are routed to Link2One

You will have to perform a one-time routing table configuration to properly route traffic to the Link2One Hub.

The Principles of Data Implementation

To implement data roaming, you must ask your GRX/IPX provider to “advertise” the Link2One Hub IP address within the Link2One network. You can then take advantage of the data link established via your GRX/IPX to reach the other member operators. No additional implementation in other GRX is needed, and no additional IPs (Internet protocols) need to be defined. You will have to configure the technical data of the HPMN and perform a one-time routing table configuration to properly route traffic to the Link2One Hub.

Activating CAMEL

To activate CAMEL services, you will need to have voice service available via the Link2One Hub. Link2One manages all signaling messages exchanged between the member operators, but the final acceptance of the service will depend on the content in the TAP (Transfer Account Procedures) files. The real number dialed by the subscriber must be correctly populated.

Connecting with New Member Operators

To connect with new operators that join Link2One, you will need to configure their technical and billing data in your network and instruct your data clearing house to exchange your TAP files.

Handling Customer Complaints

If you have a customer complaint about roaming services, you don’t have to contact the other operator to resolve it. You can simply contact the Link2One 24/7/365 clientsupport [at] l2one [dot] com (Customer Care Center) and we'll handle the analysis and solution.

IREG Testing

The IREG testing is always coordinated and, if possible, tested by the Link2One technical team, having all the necessary support by specific third parties. Every roaming service test (GSM, GPRS, CAMEL) requires the participation of the technical team from the new client operator to perform the necessary tests and configurations to assure the correct functionalities of the new partner in the Link2One Hub.

IREG/TADIG Testing Plan

For IREG (International Roaming Exchange Group) or TADIG testing (Transferred Account Data Interchange Group) a detailed report is provided for reference when testing is completed.

Moving Relationships from bilateral to Link2One or vice versa

The operator will need to update the routing table to route traffic correctly, either through the Link2One Hub or directly to the roaming provider (if going to a bilateral relationship). The Link2One Hub will adapt the configuration accordingly. It is important that all the parties (VPMN, HPMN and the Hub) agree on the migration date.