UPDATE 1-Mexico's Telint net surges 141 pct on forex gain

* Telint quarterly net leaps 141 pct

* Exchange rate gains boost bottom line

(Adds detail on results)

MEXICO CITY, Oct 27 (Reuters) - Latin American telecommunications operator Telmex Internacional (Telint) TELINTL.MX posted a 141 percent rise in quarterly profit, far surpassing analysts' expectations, as it benefited from a foreign exchange gain.

Analysts polled by Reuters on average had expected Telint's net earnings to rise 44 percent.

Telmex Internacional on Tuesday reported third-quarter net profit of 2.791 billion pesos ($206.7 million).

Revenues grew to 24.398 billion pesos in the quarter, up 25 percent over the year-ago period and in line with expectations.

Telmex Internacional had a financing gain of 282 million pesos in the third quarter, partly because of the rise in the value of Brazil's currency, compared to a financing loss of 902 million pesos in the same period last year.

Earnings before interest, tax, depreciation and amortization were 6.282 billion pesos, up 30 percent, also exceeding analysts' expectations. ($1= 13.5035 pesos at end-Sept) (Reporting by Noel Randewich; Editing by Phil Berlowitz)