Redefining Calling Name Presentation: Enhancing Communication or Compromising Privacy?

Introduction of CNAP supplementary service:

TRAI recommended the introduction of CNAP supplementary service in the Indian telecommunication network, emphasizing that all access service providers must offer CNAP service to their telecom subscribers upon their request. Specifically, the name provided by telephone subscribers in the Customer Application Form (CAF) was suggested to be utilized for the purpose of CNAP. In essence, CNAP service seeks to streamline the caller identification process while maintaining consistency with the information provided by the subscriber.

Technical model for implementation of CNAP:

TRAI took cognizance of the fact that a large part of the Indian telecom network is still based on circuit-switched (CS) core which may not be able to implement the CNAP service. In light of this, TRAI recommended changes in the technical model for implementation of the CNAP service. These changes include establishing and operating a database consisting of subscriber’s name against their telephone numbers, querying the Local Number Portability Database (LNPD) to identify the originating access service provider of the telephone call, etc. Accordingly, if the CNAP service is adopted by the DoT in the manner recommended by TRAI, telecom service providers (TSPs) will have to undertake the necessary technical modifications in the network to enable smooth integration of the CNAP service.

Trial and assessment for implementing CNAP:

In order to effectively introduce this service on pan-India basis in the Indian telecom network, TRAI has suggested conducting a trial and assessment of the service in one licensed service area (LSA) covering the subscriber base of each TSP within the LSA. This helps in ensuring a detailed understanding of the feasibility and potential challenges of implementing this service. Accordingly, necessary adjustments can be carried out to facilitate a successful rollout of the CNAP service across the entire country.

CNAP for commercial communications:

TRAI has also identified recommendations for the implementation of CNAP service in case of commercial communications. Particularly, TRAI recommended that in case of calls originating from 140-level numbers allocated to registered telemarketers and any other number series allocated for making transactional or service-related calls, the name of the subscriber entity should be presented to the called party. In order to do so, TRAI recommended that subscriber entities holding bulk and business connections should be given the option of presenting their ‘preferred name’ instead of the name appearing in the CAF. Such ‘preferred name’ could be the registered trademark name, trade name or any other unique name registered with the government, which can be corroborated by presenting the required documents. In this regard, TRAI has also sought that the DoT should formulate guidelines for documents to be provided by subscriber entities and to prevent any misuse of this facility.

Privacy considerations:

Introduction of the CNAP service could potentially open doors for concerns relating to privacy and data protection. For instance, CNAP service entails disclosure of personal information of a subscriber to the recipient, resulting in invasion of privacy particularly for callers who prefer to keep their identity private for security reasons or maintaining anonymity. Additionally, storage and transmission of caller information also exposes threat to potential vulnerabilities such as data breaches and unauthorised access which should be addressed through robust data protection measures. To address such privacy concerns and to enable control over an individual’s autonomy to manage their personal data, TRAI has suggested that the calling name of telecom subscribers who have availed the calling line identification restriction (CLIR) facility should not be presented to the called party.