The Telecom Regulatory Authority of India (TRAI) is currently deliberating a significant change that could allow customers to initiate callbacks on 1600-series numbers, which are exclusively used by the banking, financial services, and insurance (BFSI) sectors for outbound communication. This proposal, first reported by The Mint, seeks to address customer concerns regarding call verification and follow-up on service and transaction-related interactions.
Why Banks Want Callbacks
Currently, 1600-series numbers are one-way, meaning financial institutions can call customers, but customers cannot dial the same number back. This creates a challenge for verifying the authenticity of calls and for customers needing to follow up on a transaction or service inquiry. Banks and insurers have highlighted this 'friction' in their communications with TRAI.
“In one of the meetings (with Trai), banks raised a concern that users cannot call back 1600 numbers, creating friction when they need to follow up on a call or transaction,” an official stated, emphasizing that a decision hinges on technical and commercial feasibility between banks and telecom operators.
Sugandh Saxena, CEO of the Fintech Association for Consumer Empowerment (FACE), noted that allowing callbacks would significantly improve the utility of these numbers and meet the policy objective of trustworthy business communication, especially as the fintech industry has spent months migrating to the 1600 series to combat fraud.
Telecom Operators Raise Concerns
While the proposal offers clear benefits for consumers and financial institutions, telecom operators have voiced apprehension. They argue that allowing incoming calls on the 1600 series could negatively impact their revenue generated from the existing 1800 toll-free number series, where businesses bear the cost of incoming calls and call volumes are typically high.
The Cellular Operators Association of India (COAI) reportedly highlighted risks associated with directly enabling incoming calls for 1600 numbers during a meeting with TRAI in June. Industry executives, including one from Reliance Jio, indicated that telecom providers are not in favor of the change due to the potential commercial implications and the need for clarity on how the two number series can coexist without affecting business models.
Evolution of the 1600 Series
The Department of Telecommunications (DoT), acting on TRAI's recommendations in 2024, introduced the 10-digit 1600-series numbers specifically for service and transactional calls by BFSI entities. This was a direct response to the difficulty customers faced in distinguishing genuine calls from potential scams when financial institutions used regular 10-digit mobile numbers. TRAI had mandated that BFSI companies migrate to these 1600 numbers for transaction and service calls by March 2026.
Ongoing Spam Concerns
Despite their intended purpose of enhancing trust, both the 1600 series and the 140 series (used for promotional calls) have faced scrutiny over spam concerns. Truecaller, a popular caller ID app, criticized a TRAI directive that barred such apps from labeling calls from these designated numbers as spam, arguing that it undermines consumer protection when many users report them as spam.
TRAI maintains that the objective of designated series is to make communications trustworthy and therefore prohibits tagging or blocking. However, it allows customers to manage promotional calls from the 140 series via the Do Not Disturb (DND) registry. Between April and June, 1.15 billion calls originated from 1600-series numbers, highlighting their extensive use.
TRAI is now carefully weighing customer convenience and the imperative for trust in financial communications against the commercial interests of telecom operators as it continues deliberations on the callback facility.