With Communications Manager 9, Cisco will begin to support Uniform Resource Identifier (URI) dialing from IP phones. So, what does this mean? In a nutshell, it means that the way we dial each other is changing. Today a telephone number in North America consists of an area code, an office code and a subscriber number. For example, 678 (area code) 456 (office code) 6986 (subscriber number). A call is routed across the telephone company?s voice network using these codes and delivered to Adcap?s main reception phone.
URI dialing introduces the concept of routing a call based on a hostname and a domain, which we have all come to know as an email address. ?For example: reception@adcapnet.com.
Why do you care about this?
- As this migration takes hold, you will no longer have to keep track of phone numbers, you can dial someone using their email address.
- These calls will be IP based, so geographical boundaries no longer apply. There will be no need to change your contact information if you move or if you travel.
- Because this is IP based, other services can also use URI dialing, such as video or chat.
How does this work?
URI dialing uses Session Initiation Protocol (SIP), which is based on HTML (Web pages). The infrastructure to route data using HTML and email addresses has been around for many years.? We are all accustom to surfing the Internet or sending an email. If you send an email to reception@adcapnet.com, your Domain Name Server (DNS) will resolve adcapnet.com to Adcap Network System?s domain and send the email to our receptionist?s hostname, reception, within the adcapnet.com domain using Simple Mail Transfer Protocol (SMTP).
A URI call uses this same infrastructure. If you have a SIP device (Such as a Cisco IP phone) that has URI capabilities and you dial reception@adcapnet.com, your DNS will resolve adcapnet.com to the Adcap Network System?s domain and a SIP invite will be sent to my hostname, reception, within the adcapnet.com domain. The requesting and receiving devices will then negotiate capabilities and services, such as voice capabilities, video capabilities or chat capabilities. Once a service / capability agreement has been made, communications are established.
Over the past 10 years, the market has adopted VoIP / IP Telephony / Unified Communications as the standard going forward. The legacy Private Branch Exchange (PBX) manufacturers have either adapted this mode of communications or are no longer a player in the market. It only makes sense that the telephone companies will follow suit or become obsolete in their current line of business. Welcome to the beginning of the end for traditional telephone numbers.
Author: Michael J. Cavanaugh, CCIE #4516
Posted: Adcap Network Systems Blog
Related posts:
- Use Real ROI Numbers to Pay for Your New Phone System
Last Updated: September 14th, 2012 |
Source: http://www.adcapnet.com/blog/uri-dialing-the-beginning-of-the-end-for-telephone-numbers/
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