SIP trunking

[artesian2000]

What if any VoIP carriers are doing direct SIP trunking? I'm being asked to find a carrier to connect to the will support In/Outbound on an IP level. Think it boils down to interop and have heard quite a bit of it's in developement. So who if any will offer it and anyone know of what the inter op list looks like?

 

[phannah]

I believe Level3 does it, and from just reading other carrier's websites, Sprint and MCI come to mind. Perhaps XO and AT&T as well, but Level3 is the one I've seen most mentioned.

 

[artesian2000]

Level 3 has bailed on the consumer market totally. They have taken the carriers carrier mentallity in reguards to VoIP. So a user needing has limited choices if any right now I think. MCI is working on deploying SIP trunking but from I'm told it looks like 4q this year. Just looking to find out if anyone is offering this service today

 

[bwbarnes]

A company in Cincy does it with QoS. They are called iTEL-ip. If you google "itel-ip" (no quotes) They are the 4th link down.

 

[VinylDave]

Aastra (formely Ascotel) 6.6 version systems fully support SIP Trunking.

 

[thereignmaker]

The markets you're in will narrow down your options. My company provides SIP trunking through Level 3's network, so if we can't provide the service for you, I can find a company that can. Let me know what markets you're looking at and I'll see who provides service there.

 

[bwbarnes]

Except Reignmaker doesnt offer QoS. Unless you are delivering your service over a private IP network by delivering a DSL or T1 line into the customers premise you cant.

iTEL-ip also uses L3 as a "back up" carrier. Le's network doent support things like t.38 (faxing for Asterisk and other systems lie that).

Does Reignmaker support g.729 through the entire coverage area?

 

[thereignmaker]

bwbarnes,
I know who you and your company are, so I have no intention of getting into a 'how does Reignmaker provide QoS' discussion with you. artesian2000 had a question about what companies offer SIP trunking, If your company provides it that's great! However, I 'm not sure a reverse sales pitch from someone that doesn't even have the marbles to claim his own company is the best way to address his question.
You know you can select vendor as a description right?

 

[bwbarnes]

I have nothing to hide. When I originally posted this message I was a director of a IT consulting firm working with iTEL-ip because I was looking for a SIP Trunking provider that can deliver QoS for my customers. And yes I am now I actually work for iTEL-ip. I have no reason to hide that.

Your "marbles" comment and accusing me of a "reverse sales pitch" are bordering on unprofessional. So I wont go down that road with you.

I will however point out that Reignmaker was another provider that I looked at when I was a consultant and could not deliver a private circuit to my customers to ensure QoS. Deploying an Edgemark device and simply "monitoring" traffic does not provide QoS. If your call is over the public internet you don’t have QoS, its that simple. In your defense however, MOST providers do it that way.

iTEL-ip's approach however is delivering the Highest quality IP service on the market. That’s why you see national support for g.729, t.38, private QoS circuits and the whole 9 yards.

That is why I used them for my customers and that’s why I went to work for them.

 

[thereignmaker]

My comments weren't bordering on unprofessional, they were unprofessional. I apologize for that, but I call it like I see it. However, making accusations on what a company can and can't do, without knowing how it delivers service or what its network looks like, is unprofessional. If you don't understand, from a technical prospective, how a company other than your own delivers QoS, that's your problem. I will tell you this, if you believe that having a T-1 or DSL delivered over a 'private' IP network is the only way to ensure QoS, you have been sold a lie. And if you are using that as a competitive differentiator, you are selling a lie. You're right about the Edge and you're right about sending packets over the public Internet. You're wrong in thinking that's what we do and your wrong in thinking the way your company does it is the only way. In your words, 'it's that simple'.

 

[bwbarnes]

I can agree to disagree with you for the sake of keeping this conversation above board.

Saying I dont understand from a technical stanpoint though is unfair, you dont know me or where I stand with the "technical" aspect of this business. For the same reason, I wont try and argue the same point with you.

However just by "saying" you can support QoS isnt enough for me or most readers to take your word. A brief explaination would make your argument more valid and perhaps gain you more credability.

And yes our logic is well, "simple". Routing calls over a private IP network by deploying a private data circuit and a QoS router on the customers premise ensures that calls are not going over the "public internet" which makes your phone call seseptible to packet loss, jitter and latency. All of these affect voice quality. We simply manage that over our network.

As we all know networks are only as strong as their weakest link. In most cases VoIP providers’ weakest link is the public internet. Deploying premise based QoS (and NAT) equipment will give people QoS internal to them (example: downloading a large file while talking on the phone, voice traffic will be prioritized). However since VoIP providers are delivering the phone number and dialtone over the internet, the call has already hit the public internet BEFORE it hits any internal QoS equipment.

Yes, you can moniter public internet traffic, no, you can not control it.

If you have magicly found some way to control this or have another methodology, I am all ears. Until I hear an explaination though we will have to agree to disagree.

I would like to preface this by saying: "at the end of the day we are on the same team". Although it appears we have different delivery models and go to market strategies, we BOTH are taking customers away from tradional Exchange Carriers for the better good of telephony. For this case I would rather be your friend than your enemy. I also would like to add that I have a pretty good handle in the hosted voip and hosted PBX industry and I do hold Reignmaker with high regard in an overall sense of the view. I have seen some very nice things on the marketing front from your organization and strangely enough do not go up against you very often (nor do my channel partners). This simply tells me that there are plenty of organizations making the shift to a hosted VoIP model and it bodes well for all involved, customers and vendors alike. Kudos to you and I thank you sincerely for the constructive dialog.

bwb

 

[agnvoip]

Hello artesian2000,

Our company - AGN Networks (

http://www.agnvoip.com)

provides unbundled SIP & H323 Trunking to and from the PSTN targeted specifically to companies operating IP PBX's. We are currently one of only two Avaya Complaint SIP Trunking Providers (Global Crossing being the second) - although we support most standards-based H323 or SIP Based IP PBX's. Our key advantage is a significantly reduced barrier to entry and near real-time (30 minutes or less) provisioning of termination, DID's and Toll Free Numbers.

The thread about QoS is interesting, and one we come across often. BWBARNES is technically correct in stating that QoS cannot be guaranteed across the Internet. That said, while it may not be guaranteed, the use of extensive peering with major Internet backbones can optimize the routing and help insure that calls remain on one ISP’s backbone. While different ISP’s implement different policies and may or not respect QoS tagging, core backbones typically have more than sufficient bandwidth to make QoS a non-issue. From our network perspective, we have deployed multiple Gig-E to assure SLA’s consistent with toll quality voice.

The issue then becomes the “last-mile,” which is the weakest/slowest link in the chain. From practical experience, we have found that QoS is on the serial interface to the WAN yields excellent results. Our company offers a free two week trial to assure customers of our voice quality. Furthermore, in many instances, with larger organizations we have peered privately to then provide true QoS.

I invite you to visit our website for more information.

 

[artesian2000]

Thanks Ang. This is what I am looking for.

 

[bwbarnes]

Nice post AGN, thanks for chiming in. I have heard of yo giuys before, nice website. Do you guy support t.38 and g.729 on your network too?

Any Hosted PBX stuff or just IP trunking? Thanks.

 

[agnvoip]

Thanks BWBARNES,

We do support t.38 and g729 for outbound termination and inbound DID's. Inbound 800 though is g.711 only.

We just do trunking to IP PBX's - no hosted PBX offerings. A good way to look at us is Class 4 type service.

 

[bwbarnes]

Sounds like very good service. I would be curious to see how it is priced but I dont expect you to post that here.

Thanks again.