Dutch banking group ABN Amro is outsourcing the management of its mobile communications operations to local telecoms operator KPN.
The five-year contract covers mobile connections - including voice and data - for 22,000 bank personnel in 17 countries.
KPN says it will act as a principal contractor and will in turn contract other mobile operators worldwide to manage the bank's services.
Peter Josse, program director for telecommunications and networks, ABN Amro, comments: "This contract with KPN gives us a single vendor for all our mobile services. This deal will mean improved service for the bank's employees as well as delivering significant savings."
In Europe, KPN subsidiary Sympac will assume responsibility for the supply, management and maintenance of the mobile phones and Blackberry units used by bank personnel.