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Burstable PSTN, Always available with our SIP Platform

By February 17, 2017 Voip

Burstable PSTN, Always available with our SIP Platform

It is a great deal. Huge in fact.

It is cool. Our competitors hate it. It is ugly, and it has enormous implications for the entire legacy revenue model that is being protected very carefully by our competitors and the super big phone companies.

They call it ‘leaving money on the table.’ We do not see it that way. That money should not even be near a table.

How does it work today?

There is an old school calculated relationship between the number of phone users or extensions in your office to the number of outside lines to the PSTN. Ever wonder how this is determined? You (or your provider) guess(es).

There are some actual calculations. No one does them anymore. The thumb in the air (like you just don’t care) approach is the universal standard. The price for phone lines (PSTN) has dropped over the last two decades (although not quickly), and the opportunity cost of guessing is less horrible.

Moreover, if you are wrong? No worries. It just means from time to time you will get an ‘all lines busy’ when you try to make an outbound call. Inversely, when you receive an inbound call let’s say from your largest and best customer or perhaps that whale account you have been waiting on, well they will get a busy signal.

I think we all agree that a busy signal is not a good idea.

A good analogy would be a bounced email. Pretty bad. Especially when you know, it is a valid email. We grow accustomed to having ‘availability.’

What is different with a Burstable PSTN?

Since we all guess we think that we should over-provision. That is what phone companies and the people who sell configured ports have been doing for years (decades even). In fairness, they want to avoid busy signals and lost business.

With a burstable PSTN plan, you have scalability on demand. In this case, the ‘burst’ requirement of SIP Trunk capacity is free for you to use if you only need if for a limited time. This is ideal for a business with a busy season or activity spikes without worrying about having enough trunk capacity for taking extra simultaneous calls.

Why is this super-cool?

For SIP channels. Frontier has a couple of ways of getting this done. For a multi-site business, we would propose that the ‘best’ way is a global pool of channels within your MPLS network. For example, assume a $15 bi-directional channel, but the channels would be ‘shared’ amongst all your sites. There is already a large saving when you ‘pool’ all your PSTN usage against all your sites.

Now consider that over-and-above you are able we can set a set a burst range at a 95% percentile which would allow you to double or triple your channels. Since it is burstable, we don’t have a need to limit the burst. We could set up 100, 200, 300 channels. The limit would be at your end vs. ours. IE: SIP trunk licenses or gateway ports required. It is a cool way of doing this.

A burstable SIP trunk includes an enhanced “burstable” channel feature that temporarily allows for more call channels than initially provisioned to accommodate bursts of high phone call traffic.

About Frontier Networks


Frontier Networks Inc. is headquartered in Toronto, Ontario and provides Broadband Internet or MPLS, Voice lines or Cloud PBX (a replacement to old phone systems), cloud servers , colocation and our new Physical Security offering to Canadian Retail and Multi Site customers who demand world-wide coverage from a ‘new’ network. “We like to do traditional things in a non-traditional way”.  Frontier has built a network that connects to other networks. Think of them like a large ‘backbone’ of interconnected networks. They connect to every phone company, cable company, wireless and hydro/utelco in Canada and the US through a series of well-connected Points of Presence (POPs). Simply put ‘we don’t suck’.

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