+1 with the Adtran 900 series and there support is top notch and well documented on the net. Carlos Alcantar Race Communications / Race Team Member 1325 Howard Ave. #604, Burlingame, CA. 94010 Phone: +1 415 376 3314 / carlos at race.com / http://www.race.com From: REID PALMEIRA <reid.palmeira at wavecomsolutions.com<mailto:reid.palmeira at wavecomsolutions.com>> Date: Monday, December 9, 2013 at 1:42 PM To: VoiceOps <voiceops at voiceops.org<mailto:voiceops at voiceops.org>> Subject: Re: [VoiceOps] PRI Gateway Supporting 1 - 3 PRI's The Adtran 908e is good for that. What kind of transport network are you using? There's some AudioCodes gear that works well, is pretty cost-effective, but they're mostly Ethernet WAN so you may have to bring in additional CPE depending on what your transport network looks like. REID PALMEIRA | PRODUCT ENGINEERING | WAVECOM SOLUTIONS | http://www.wavecomsolutions.com<http://www.wavecomsolutions.com/> | Ph: +1(808)791-3017 | Fax: +1(808) 447-0317 Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient (s) and may contain confidential or proprietary information. Any unauthorized review, use, disclosure or distribution is prohibited. ________________________________ From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Keith LeClaire Sent: Monday, December 09, 2013 10:54 AM To: voiceops at voiceops.org<mailto:voiceops at voiceops.org> Subject: [VoiceOps] PRI Gateway Supporting 1 - 3 PRI's Hey VoiceOps, I was looking for some recommendations for a SIP-PRI Gateway that supports at least 1 PRI connecting back to the clients PBX. I've seen Adtrans are popular, but we don't have any experience with them yet. Thanks, Keith

On 12/9/13 4:52 PM, Max Clark wrote:

I'm assuming that the Adtran TA900 has a high precision clock. Do they come in 4x PRI configurations?

It has an internal oscillator for T1 clock, but not of BITS type accuracy. You'll get slips if you have a BITS-timed T1 connected with the Adtran set to internal clock. Of course you can set it to synchronize from line. We've never had any problems driving a stand-alone PBX from its internal clock. I haven't evaluated the precision of its time-of-day clock. It supports NTP so this hasn't been an issue. Maximum number of PRIs supported is two on the -e models, even though they have four T1 interfaces, only two of them support TDM voice. The other two (or all four if you want) can be used for data as PPP, HDLC, or frame-relay. -- Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV

This may fall under the stupid question category.. But where do you find reasonably priced transport for your PRI's? We're a hosted Voip vendor so we typically have just ran over whatever ISP's bandwidth we could find. However more and more we're asked to supply a PRI or SIP trunk to a customers location. I see other large providers in our area providing this service, and I assume that they must be getting a wholesale price from the ILEC (In our case ATT) on the transport.. But I've never made any headway with them. How are these other companies providing PRI + bandwidth for $300-$450 per month? Is there a way to secure cheaper transport? Thanks David -- Ringfree Communications David Wessell 828-575-0030 x101

And if you are a CLEC you have the ability to install your hub circuits and aggregation gear inside of the serving wire center. *Max Clark* Managing Director | Phyber Communications +1 (213) 929 1700 | mclark at phyber.com Visit us at www.phyber.com Hosting | Network | Voice On Tue, Dec 10, 2013 at 8:06 PM, Alex Balashov <abalashov at evaristesys.com>wrote:

A lot of them have an aggregated transport facility (e.g. a DS3) from the ILEC that they pay as a fairly large fixed cost, so T1s to customer locations are "tail circuits" (distinct T1s on one end, and cross-connected and muxed onto your T3 on the other) with a lower incremental cost. Actual cost depends on mileage factors and any interoffice mileage, but can be as low as $100-$150.

If a lot of your competitors are CLECs, the answer is more obvious.

On 12/10/2013 11:01 PM, David Wessell wrote:

This may fall under the stupid question category.. But where do you find

...

reasonably priced transport for your PRI?s?

We?re a hosted Voip vendor so we typically have just ran over whatever ISP?s bandwidth we could find.

However more and more we?re asked to supply a PRI or SIP trunk to a customers location. I see other large providers in our area providing this service, and I assume that they must be getting a wholesale price from the ILEC (In our case ATT) on the transport.. But I?ve never made any headway with them.

How are these other companies providing PRI + bandwidth for $300-$450 per month? Is there a way to secure cheaper transport?

Thanks David -- Ringfree Communications David Wessell 828-575-0030 x101

_______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops

-- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Decatur, GA 30030 United States Tel: +1-678-954-0670 Web: http://www.evaristesys.com/, http://www.alexbalashov.com/ _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops

Do you find people are still becoming CLECs? Sent from my iPad

On Dec 11, 2013, at 1:40 AM, "Alex Balashov" <abalashov at evaristesys.com> wrote:

...

On 12/11/2013 12:24 AM, Max Clark wrote:

And if you are a CLEC you have the ability to install your hub circuits and aggregation gear inside of the serving wire center.

Yep, though the ILEC will rape you on EELs dragged in from another wire centre that you're not in. At least when you buy wholesale ILEC transport, you take the pain up front, instead of eating the expense of going into a blacklisted CO where you don't get real UNE pricing and getting eaten alive on EELs.

-- Alex Balashov - Principal Evariste Systems LLC 235 E Ponce de Leon Ave Suite 106 Decatur, GA 30030 United States Tel: +1-678-954-0670 Web: http://www.evaristesys.com/, http://www.alexbalashov.com/ _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops

Max, You could look at Adtran Netvantas. We are starting to deploy these and many have add in cards (8x T1s per card). **We have not used them to turn up PRIs yet, still using the TA900 series. We are in the process of vetting and deploying the Netvantas (8044Ms in particular) for internet and will be turning voice up on them after.** We are home running the T1s (Pseudowire) back to an OptiPlex (6100 MX) and that is using physical OC/DS (3 or 12) back to our phone switch (the physical connection was not configured by me so I am not up to speed on it yet). Brian Date: Tue, 10 Dec 2013 16:58:21 -0800 From: mclark at phyber.com To: voiceops at voiceops.org Subject: Re: [VoiceOps] PRI Gateway Supporting 1 - 3 PRI's So for installations requiring more than 2x T1s what's the recommendation? Max Clark Managing Director | Phyber Communications +1 (213) 929 1700 | mclark at phyber.com Visit us at www.phyber.com Hosting | Network | Voice On Mon, Dec 9, 2013 at 8:12 PM, Jay Hennigan <jay at west.net> wrote: On 12/9/13 4:52 PM, Max Clark wrote:

I'm assuming that the Adtran TA900 has a high precision clock. Do they

come in 4x PRI configurations?

It has an internal oscillator for T1 clock, but not of BITS type accuracy. You'll get slips if you have a BITS-timed T1 connected with the Adtran set to internal clock. Of course you can set it to synchronize from line. We've never had any problems driving a stand-alone PBX from its internal clock. I haven't evaluated the precision of its time-of-day clock. It supports NTP so this hasn't been an issue. Maximum number of PRIs supported is two on the -e models, even though they have four T1 interfaces, only two of them support TDM voice. The other two (or all four if you want) can be used for data as PPP, HDLC, or frame-relay. -- Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net Impulse Internet Service - http://www.impulse.net/ Your local telephone and internet company - 805 884-6323 - WB6RDV _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops