As an operator of its own GSM network, HSL is involved in the development of GSM mobile network infrastructure and mobile network services.

HSL Mobile Networks are launching a new mobile network using established GSM/GPRS/EDGE technology that will compete with the existing UK mobile network operators such as O2, Orange, T-Mobile, H3G and Vodafone. Mobile service through this new network is expected to be available UK-wide during 2008. Coverage for the mobile service will come from roaming onto existing UK mobile networks, 'on-net' coverage hot-spots and 'on-net' coverage in customers' homes through a large scale deployment of the low power HSL 2.75G Femtocell.

HSL's Mobile Networks division develops mobile services in addition to providing infrastructure development of various network elements including:

• MSC/VLR
• BSC
• BTS (femtocell)
• SMSC
• HLR/AuC
• EIR