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Local T1 Voice
Local voice T1 provides 24 local voice channels (telephone lines) over a T1 circuit. With local T1 voice you can usually access long distance service for better than retail per minute rates.
Long Distance T1 Voice
A long distance T1 voice circuit provides extremely competitive per minute rates because the long distance T1 circuit by-passes the local provider. The customer is not required to pay the local provider for transferring the call to a long distance provider. The down side of using long distance T1 is that because the local provider is by-passed, local calls cannot be made for free. Long distance T1 voice is often preferred by businesses like nationwide call centers which make a high volume of long distance calls. With long distance T1, nationwide long distance calls can be as low as a penny a minute.
Local and Long Distance T1 Voice PRI
Local and long distance PRI share the same benefits and limitations mentioned above for analog local and long distance voice T1s. A few differences between analog voice and PRI are that PRI dedicates one channel for call administration. This leaves 23 channels per t1 for voice traffic rather than 24. The administration channel enables PRI service to have more robust features than analog, such as DID (direct inward dial) numbers and better caller ID. A PRI card is required in order for a PBX to facilitate PRI service. A new PRI card costs between $1000 and $2500.
T1 Voice SIP
SIP (session initiation protocol) is a relatively new technology that bridges the gap between voice and IP applications. SIP, with a modern IP-PBX, eliminates the need for expensive PRI cards to configure voice packet compatibility with the PSTN (public switched telephone network). The elimination of the need for PRI configuration also improves packet efficiency.
T1 Voice Virtual DIDs
Another advantage of SIP is virtual DIDs. Virtual DIDs allow companies to have a local presence (local phone number) in other geographic locations, including other countries of the world. For example, a company in Los Angeles could have local phone numbers in New York, Houston, Seattle and London.
T1 Voice VoIP
VoIP (voice over internet protocol) voice traffic can be transmitted over the public internet, across the secure network of a telecom provider, or via the private MPLS network of a multi-location business.
T1 Voice, VoIP Over the Internet
VoIP over the internet has its limitations because CoS (Class of Service) packet prioritization cannot be enforced on the public internet. The result of this is that voice traffic is competing with all other internet traffic at each relay. This lack of CoS can often result in latency and packet loss. High latency and packet loss often results in poor voice quality. These issues are virtually non-existent with VoIP over private network telecom provider.
T1 Voice, VoIP Over the Closed Network of a Telecom Provider
With this option, the provider keeps all voice traffic on their private network, until this traffic reaches the PSTN (Public Switched Telephone Network). This allows the provider to ensure that voice traffic receives top priority at each network relay, and more routine, less latency sensitive applications receive lower priority, while a call is in progress. The result of these measures is virtually perfect call quality. All major telecom providers now routinely utilize VoIP technology voice transmission.
T1 Voice, VoIP Over the MPLS WAN of a Multi-Location Business
With VoIP over the private MPLS (Multiprotocol label switching) network of a multi-location business, CoS is ensured by the provider, so call quality is excellent in these situations as well. An advantage for businesses with VoIP over an MPLS network is that all location-to-location calls within this network are free.
T1 Voice On an Integrated Circuit
Integrated T1 provides more than one application like VoIP over a closed network of a telecom provider, video conferencing, location-to-location networking and commercial internet, over a single bandwidth pipe. Integrated T1 allows smaller and medium sized businesses, with limited budgets to enjoy several applications which at one time could only be afforded by large companies.
T1 Voice and Channelized Integrated
Channelized service was the predominant integrated technology prior to the arrival dynamic integration. Channelized integrated service is static, in that applications assigned to each channel of a t1 circuit is fixed. With channelized service, there was much bandwidth wasted, because when an application was not used, the bandwidth assigned for that application could not be reassigned in real-time to other applications which would operate more effectively with additional bandwidth.
T1 Voice and Dynamic Integrated
With the maturity of dynamic bandwidth allocation, bandwidth is now reassigned and prioritized in real-time, to ensure that bandwidth for applications that are not being used, can burst to applications which are being used. For example, when a phone line is in use, a certain amount of bandwidth is dedicated to that call. As soon as the call has ended the bandwidth goes right back to the internet side of the integrated circuit.
To check prices and availability for any of the services listed above, please use the pricing tool at the top of this page. Its free, real-time, easy to use and there is no obligation.
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