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Cisco Communications Manager and one sip trunking


Added: 10-02-2006
Author: Milton Moore
Category: VoIP 		← Back | ↓ Related | Home →


SIP trunking is a very popular way to connect the Public Switch Telephone Network (PSTN). Session Initiation Protocol (SIP) is a protocol gnaling, was used to create and destroy Multimedia communication sessions such as voice and video calls over the Internet. Instead of a line from your local provider (AT & T, Verizon, etc.). Unapounganisha a SIP trunk provider, sometimes referred to as Internet telephony Service Provider (ITSP). They can provide a phone number in many area codes to provide these goods in the Direct Dial (DID) and Caller-ID on the SIP trunk. Think about Vonage, but in small businesses.

What is confusing for many people is that a SIP Trunk is a logical relationship. Not as POTS, T1 or PRI, which is a physical connection. Common ways to connect to ITSP in the Internet or private MPLS cycle. About the use of the Internet is the lack of Quality of Service (QOS), but it was amazing how well that works.

SIP trunks are supported in Cisco Unified Communications Manager for a while. Configuring SIP trunk directly to the UCM has limitations. This is why recently added Cisco router SIP trunking their support base. Cisco Unified Border Element (Cube) is a set of features that can be added to the voice gateway. There are additional costs for this program, but when compared with the cost savings for the SIP can do a lot of sense.

For more information visit visit my blog at http://www.VoIP-Tutor.com/blog



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