Carphone Warehouse has announced that its broadband revenue growth may be less than expected in the coming year.

The announcement came in its annual business report, in which the company also noted a period of sustained growth in the 12 months to March 29th 2008.

Its broadband offerings were said to have performed particularly strongly, with 67 per cent of all of its fixed-line customers using its own broadband products rather than third-party services.

"We have extended our network footprint to over 1,600 fully-unbundled exchanges, giving us a significant cost advantage over our competitors across most of the country," said Charles Dunstone, chief executive officer of Carphone Warehouse.

However, the company announced that fewer users had signed up in April than anticipated, which it put down to a slump in the housing market and increased mobile broadband sales.

The group warned that should this trend continue, it would have to re-evaluate its broadband revenue projections.

Bloomberg reports that the company's share price fell considerably in trading following the announcement.

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