A brief technical explanation: PRI, sometimes also called Megalink, digital, or fiber, is a TDM, ISDN type (circuit-switched) type telco service which is rapidly replacing the older style analog line. A standard PRI service in North America has 23B channels and 1 D channel - if added together you have 24 channels. These 24 channels are comprised of 24 channels of 64 kbit / second, or 1.544 Mbit / second (24 X 64). The PRI is a similar service to the T1 - a T1 is made up of 24B channels, or 1.544 MB as well. The T1 has 24B channels, and the PRI has 23B + 1 D channel. The PRI is used for voice, and the T1 is used for data.
The PRI is a digital service, which means that the sound quality is near perfect. Unlike an analog line, which sometimes has a 6 to 8 dB loss, the PRI service has a 0 dB loss, making the sound quality that much better.
The technology has been around for some time - Digitcom.ca has been installing PRI circuits for our clients since the mid 90's. It is a very mature technology, with obviously, a very high adoption rate in the small, mid, and especially enterpise Telecom markets.
Next question: Is your current PRI contract competitive, and how do American and Canadian rates vary ?
I did a quick price survey - 1 in downtown Miami (with the help of my friend TJ Spohn from CPT Florida) and the other in downtown Toronto, 2 typical North American cities. Prices from the carriers are as follows:
Down Town Miami:
Nuvox
Rate / month $425
Install charge $0
Contract term 24 months
Lead time for install 30 days
LD rate .05 intrastate / interstate
Paetec
Rate / month $550
Install charge $0
Contract term 36 months
Lead time for install 30-45 days
LD rate .03 intrastate / interstate
AT&T
Rate / month $650
Install charge $0
Contract term 36 months
Lead time for install 30-45 days
LD rate .05 intrastate / interstate
Down Town Toronto:
Allstream
Rate / Month = $615 (10 DID's included)
Install = $0
Contract term 36 months
Lead Time for Install = 4 to 6 weeks
Long Distance = $0.02 / minute North America
Bell Canada
Rate / Month = $672
Install = $0
Contract term 36 months
Lead time for Install = 3 to 4 weeks
Long Distance = $0.025 / minute North America
Telus
Rate / Month = $653
Install = $0
Contract term 36 months
Lead time for Install = 4 to 7 weeks
Long Distance = $0.025 / minute North America
Rates were coming down for some time, but seem to have stabliized over the last few years. Paying more ? Call your carrier !
Written by: Jeff Wiener. www.digitcom.ca. Follow TheTelecomBlog.com by: RSS, Twitter, Identi.ca, or Friendfeed
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