How many voip lines on a t1

Or just use the existing internet connection? Details: Business is in a remote, rural location and T1 is the best internet connection available. This connection is occasionally near saturation. Rather than hosted VoIP service, I will have an on-premise VoIP server so interoffice calls can be made even if the internet connection is down, this occurs several times per year for hours at a time.

There are about 30 employees so the maximum number of simultaneous VoIP calls is estimated a bit high at Might not be a bad thought for failover if the main link goes down. Re-routed VoIP traffic and in a few mins all was well. If your maxing out the existing connection you probably will want that other t because even with qos your call quality could suffer. For regular internet data traffic we currently have 4 bonded T1 lines.

Yes, get the dedicated connection. For 30 concurrent calls, you may need to get 2 bonded depending on what codec you are using. You might be better off using QoS on your existing lines, adding a 5th for total bandwidth, and then manage it up from there. Will this be for SIP lines? My biggest concern for you would be that you are in a rural location. Even though you have QoS setup internally once calls leave your building how is the infrastructure?

If you are considering SIP lines find out what server you will be connecting to and do a tracert and speedtest to see what kinda speeds you will experience. Good luck. If you are going to have 30 concurrent calls, that will be about 87 Kbps per concurrent call with G. Does bandwidth for VOIP have to be dedicated? If you are maxing out what you have now, then you need to add something whether it be adding to what you have and using QoS like Grey mentioned or adding a separate circuit for VOIP only.

You could add a 5th T1, implement QoS, and look into using G. GetThere Technologies is an IT service provider. QoS does not work over the public Internet. You will generally get that by purchasing the circuit from the same company that is doing the VoIP assuming they have their own infrastructure and are not simply resellers - or a CLEC. VoIP call quality is good only if all of the pieces that make it up are good.

The mantra is high cost dedicated lines. But these are used to effectively remove the "IPness" of the VoIP solution and take you backwards to unreliable, high cost, tied to your physical location legacy telephony days. The reality is is that guaranteed quality is hype.

Cell phones prove that guaranteed quality is not a concern in the real world. Very, very few people actually care about call quality but everyone says that they do. What they do care about, normally, is reliability and cost and you have to decide.

T1 PRI bundles up to 23 local or long distance lines together into one digital line service. There are actually 24 channels, with one reserved for signaling and data such as Caller ID. PRI is also known as primary rate interface.

What's important about T1 PRI is that all of the channels are completely separate just like analog phone lines. If a channel isn't being used, it just sits there idling until needed. This channelization prevents crosstalk of one call into another and degradation of voice quality or dropped calls from signal interference. T1 PRI is the highest call quality you can get by virtue of it's strict design characteristics.

The reason is cost savings. Remember that unused T1 PRI channels do nothing although you are paying for the entire line by the month. The other cost that might be saved is having a separate telephone network with its own wiring plus an incompatible computer network.

Combining the two networks is called convergence. For example, you have two parties on the same network. They can make calls to each other over IP network. All digital.

Then another scenario — you need to make a call outside your office. To do this you need to use PSTN public telephone network. How this goes, depends on your provider and service they offer. For example, they may offer you VoIP service.

Then it will be a dedicated T1 just for voice. A T-1 is old technology and is limited in bandwidth. A typical VOIP call uses about kb upload and download speed. If there are only a couple of lines a simple DSL line will work. It all depends on your calling capacity. The fact is, without proper bandwidth shaping, a single T-1 line is insufficient for shared bandwidth in a VoIP environment. You can max out a 1Mbps pipe pretty quickly with overhead. Good Luck. Not necessarily. You can QOS installed.

You run into issues if you have too many users watching say training videos. Your calls may sound like a cell phone conversation, however this can be managed. No Account? Sign up. By signing in, you agree to our Terms of Use and Privacy Policy.