CORRECTED - Maroc Telecom Q2 revenue rises 6.5 percent

(Corrects time period to second quarter from first half, percentage change by business division in pars 3-4)

RABAT, July 22 (Reuters) - Maroc Telecom (IAM.CS), Morocco's dominant telecoms company, reported a 6.5 percent gain in second-quarter revenue on Tuesday on growth in its mobile phone subsidiaries.

Revenue in the April-June period grew to 7.343 billion Moroccan dirhams ($1.01 billion) versus 6.894 billion in the same period in 2007, the company said.

Mobile gross revenues in Morocco increased by 12.7 percent on the combined effect of strong customer base growth and a limited fall in average revenue per user, it added.

But its revenue from fixed-line and Internet business inched up 0.1 percent, it said. French media and telecoms group Vivendi (VIV.PA) increased its stake in Maroc Telecom to 53 percent from 51 percent last year.

Maroc Telecom competes against rivals Wana and Meditel -- a joint venture of Spain's Telefonica (TEF.MC) and Portugal Telecom (PTC.LS).

Maroc Telecom has fended off its nimble new rivals through heavy network investment and cut-price airtime deals that kept its client base growing fast in the country of 33 million.

Maroc Telecom stock has jumped 29.69 percent since the start of the year, compared to a gain of 13.57 percent last year.

In early trading on Tuesday, the stock edged down 0.26 percent to 189 dirhams. (Reporting by Lamine Ghanmi, Editing by Paul Bolding)