
At the time of writing, the mobile network had seen presentations from four agencies, including incumbent Iris.
T-Mobile upgraded its in-store multimedia strategy in June with the rollout of interactive plasma screens throughout its stores.
The company uses giant plasma screens, which carry marketing messages about products and services, as well as smaller monitors on demonstration terminals, designed to enable customers to try out the functionality of different handsets using touch-screen technology. Agencies have been briefed to come up with content for both screens.
The pitch has been overseen by T-Mobile head of communications campaign management, Rachel Shears, who is set to make an appointment at the end of the month, according to a spokesman for the company.
Consumers' in-store experience has become a major focus for mobile networks this year as competition for customers increases and handsets become more complex.
Stores are now set up as places where consumers can learn about phones and emerging technology, as well as places to buy. T-Mobile's move follows similar activity from competitors O2 and 3.