The GSMA Root Discovery Service is a globally available Internet service that acts as a central point for RSP-enabled Consumer Devices to communicate with, on-demand, to acquire Profiles destined for them.

Such a service avoids the need to use other methods for acquiring Profiles (e.g. Activation Code or Primary Device side-loading), meaning little End User interaction required. This service is built on the SM-DS entity described in the GSMA Remote SIM Provisioning specifications, SGP.21 and SGP.22.

How to Works?

The following diagram shows how an End User, having previously contracted with an Operator for a mobile subscription, can retrieve the corresponding Profile onto their Consumer Device:

Pilot Service Availability

The initial pilot launch of GSMA’s Root Discovery Service in September 2017, just as the RSP ecosystem is taking off, enables the GSMA to understand usage patterns.

Connection to the Service

Connection of SM-DP+ and Alternative SM-DS entities to the GSMA Root Discovery Service Pilot is via contractual agreement, following the application process below.

Connection of LPA entities (LPAd and LPAe) to the GSMA Root Discovery Service Pilot is free. However, in order to assure correct operation of the DS service, mandatory interoperability testing is required. Access to the DS server is via a fair-use policy. LPA providers should contact GSMA via for more information on how to connect.

GSMA’s contract for connection to the service includes mandatory pre-requisite interoperability testing of entities via the Customer Test Environment (CTE) – a reference test platform. GSMA’s Interoperability Test Plan will be supplied as part of the application process.

Who can Apply?

The following organisations may apply for service at any time during the life of the pilot:

• SM-DP+ Providers
• Alternative SM-DS Providers
• Mobile Network Operators running their own SM-DP+ / Alternative SM-DS

How to Apply

Applications to use the GSMA DS service are subject to contract terms and conditions being met and payment of usage fees made, as well as successful interoperability testing using GSMA’s CTE.

Simply follow these steps:

Step 1

Download and complete application form DSA.1 below, which provides GSMA with information about your organisation and system entities to be connected.

Step 2

Email the completed DSA.1 form to:

You will receive a reply confirming receipt and validity of the application form submitted, and the following:

  • A service contract for signing
  • Details on how to connect your system entities to the CTE
  • A copy of the Test Plan, to be used for proof of compliance
  • Details on how to connect your system entities to the live service (for advanced preparation)
  • How to obtain the necessary RSP digital certificates

Step 3

Undertake interoperability testing of your system entities on the CTE using the GSMA Interoperability Test Plan.

Step 4

Review and sign the contract, then email a scanned copy, together with evidence interoperability testing undertaken to:

You will receive a reply confirming receipt and how to make payment.

Step 5

Make the necessary payment according to the instructions given.

Service will subsequently be activated for your designated system entities.

Further Information

For further information on the GSMA Root Discovery Service, please contact the GSMA by sending an email to

Key Documents



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