Internet usage is wide-spread in Canada. Wi-fi is available in many locations in larger cities, sometimes free and sometimes at a cost. You will find Wi-Fi in coffee stores, some restaurants and also hotels and motels more and more offer this service for free, but with a code usually. Internet cafes are common along major streets, and and in larger cities, charge between $3 and $4 for an hour, usually in 20-minute increments.
See also International Telephone Calls
The country calling code to Canada is: 1. To make an international call from Canada, the code is: 011. Emergency services can be reached by dialling 911. This number will give you free access to Police, Fire and Ambulance services and can be used from landlines, phone booths and cell phones.
The populous areas of Canada along the border with the USA have excellent cellular and wired telecommunications, meaning that travellers are never fair from an international phone call home, a WIFI connection or an internet cafe. Depending on the mobile phone provider, coverage could be either CDMA and GSM coverage. Travellers wishing to purchase SIM cards for GSM phones should look for Rogers Wireless, Telus Mobility and Bell Mobility, which all offer nationwide availability.
Postal service is provided by Canada Post, a crown corporation owned by the government but run as an independent business. Most post offices keep hours from 9:00am to 5:00pm though in bigger places longer hourse might be available.
To format the envelope of a letter sent within Canada, put the destination address on the centre of its envelope, with a stamp, postal indicia, meter label, or frank mark on the top-right corner of the envelope to acknowledge payment of postage. A return address, although it is not required, can be put on the top-left corner of the envelope in smaller type than the destination address.
The lettermail service allows the mailing of a letter. The basic rate is currently set at $0.63 for one standard letter (30 grams or less). The rates for lettermail are based or weight and size and determine whether the article falls into the aforementioned standard format, or in the oversize one. The rate is the same for a postcard. Mail sent internationally is known as letterpost. It can only contain paper documents. The rate for a standard letter is of $1.10 if sent to the United States, and $1.85 if sent to any other destination. Oversize or overweight letters may be charged a higher fee. Larger parcels can be shipped via Canada post both domestically and internationally, the rate is dependent on the weight and destination. 
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