International Telephone Dialing Information and Instructions

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Dialing Information
Business Telephone Instructions
Student Telephone Instructions
Rates

Dialing Information

Errors in dialing New Delhi, India may result in reaching the Cambridge Fire and Police emergency center (911).
The country code for India is 91, and the city code for New Delhi is 11. If you try to call New Delhi and forget to start with the international access code of 011 or 01, you might dial 9 (to access an outside line), then 91-11-etc. You may already see where this is going: right to the local 911 Cambridge Fire and Police emergency center.

In recent months, Cambridge Fire and Police have been getting calls such as this, where people placing calls to New Delhi realize they have misdialed, and hang up when the emergency operator answers. A "hang up" on Cambridge Fire and Police sets the Emergency Response in motion. Such calling errors tie up 911 lines and personnel time, which could interfere with legitimate emergency calls.

If you mistakenly dial 9-911 and reach Cambridge Fire and Police, do not hang up. Identify yourself as a caller from MIT, and tell them that there is no emergency and that you have misdialed. Wait for them to acknowledge and then hang up.

Errors in dialing Zurich, Switzerland may result in reaching directory assistance (411).
The country code for Switzerland is 41, and the city code for Zurich is 1. Without the preliminary 011 or 01, this combination will get you directory assistance (411).

Business Telephone Instructions

Direct Dial Calls

To Call...	Press...
International, from Class A Telephone	9 + 011 + country code + city code + phone number
International, from Class B1 Telephone	192 + MIT account number + 011 + country code + city code + phone number
International Directory Assistance (All Classes of Service)	190 + 00 (this is a toll call and will require a calling card)
International Operator	190 + 00

Collect, Credit Card, Person-to-person, Third Party Billing (all classes)

To Call...	Press...
International	190 + 01 + country code + city code + phone number

Student Telephone Instructions

Direct Dial Calls

To Call...	Press...
International: PaeTec Campuslink	9 + 011 + country code + city code + phone number. Enter your Campuslink Personal Identification Number when you hear the continuous tone.
International Directory Assistance (toll call)	190 + 00 Ask operator for connection to international directory assistance and request that the call be billed to your personal telephone calling card or credit card.
International Operator	190 + 00