Dec. 11 (Bloomberg) -- Mobile-phone customers in Mexico City, North America’s largest city, lost voice service for 81 minutes yesterday after the country’s dominant carrier America Movil SAB suffered an outage.
Voice services began faltering at 11 a.m. local time and were down “practically in their entirety” by 11:21 a.m., the company said in a statement. The carrier traced the shutdown to a software bug in a network switch, and service was restored by 12:42 p.m., it said.
The network failure, which didn’t affect data access, puts another dent in the reputation of America Movil’s Telcel brand in the nation’s capital, where users have weathered at least two other widespread outages in the past two years. Even so, the company, controlled by billionaire Carlos Slim, has kept market share steady at about 70 percent of Mexican subscribers.
Telcel paid out 320 million pesos ($24.9 million) earlier this year and 450 million pesos in 2011 to compensate users for previous outages. The company offered an apology yesterday and didn’t say whether it was considering a similar reimbursement this time.
Mexico’s phone regulator, the Federal Telecommunications Institute, will request information from the company to evaluate the quality of its network, it said in an e-mail.
--Editors: Crayton Harrison, Nick Turner