May 2017 - VoiceOps - lists.voiceops.org

How do you update/manage your notification contacts?
by caalvarez＠gmail.com June 1, 2017

June 1, 2017

We're at the point where we really need to clean up and update our notifications contact list (people to notify of outages, changes, etc). I'm curious what people here use. We use Freshdesk for our support tickets, and that was a good list to start with, but as employees change it wouldn't get updated necessarily. Something we can simply pay for and outsource is ideal. We're an open source company, but time is a precious resource right now.

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T-Mobile UDP or RTP issues?
by Liudy＠bukys.org May 30, 2017

May 30, 2017

We are getting a sudden burst of complaints concerning TCP SIP working but no UDP RTP audio flowing, specifically on T-Mobile. Is anyone else seeing this?

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VoIP Testing
by ggeller＠vdo-ph.com May 24, 2017

May 24, 2017

+100 for voipmonitor Thanks, Glenn (Mobile) On May 23, 2017 12:49 PM, "Mark Wiater" <mark.wiater at greybeam.com> wrote: From time to time we have some remote clients who are facing voice quality > issues on their endpoints and I have no real good way of troubleshooting or > pin pointing the problem. > While it's not completely free, I couldn't live without voipmonitor for this very use. I install a sensor in the client network on a mirror port or on the phone system and get to see exactly what they see, from a voip perspective. The collection software is open source but the gui is invaluable. _______________________________________________ VoiceOps mailing list VoiceOps at voiceops.org https://puck.nether.net/mailman/listinfo/voiceops

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Universal international toll free numbers
by caalvarez＠gmail.com May 19, 2017

May 19, 2017

I know there's been some action on this, but didn't follow the details. I have a customer asking us for a "multi-national toll-free phone number." Any tips on a carrier, and details/issues to watch for?

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Maintenance for Performance Technologies SEGway
by scott＠socket.net May 17, 2017

May 17, 2017

We have been using a set of PTI SEGway x201s with point code emulation for a number of years now. We also have an unlicensed spare in stock. The maintenance contract renewals are due and the two quotes I've received are quite high. I know of at least one other company that has chosen to drop the vendor maintenance and take care of that in-house. I would like to hear from anyone that is currently using SEGways and find out what they chose to do for maintenance. I would also be very interested to hear of any bad experiences from chosing the in-house option. Thanks. Scott Stratman Network Facilities Manager SOCKET 573-999-4376 scott at socket.net 1-800-SOCKET-3 www.socket.net

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Mitigating or stopping TDOS attacks - any advice?
by myaklin＠firstlight.net May 16, 2017

May 16, 2017

Hello all, I am curious what others have in place or actions they take when a customer is the target of a TDOS attack? TDOS being Telephony Denial of Service. An attack where the perp uses whatever means to flood a customer's telephone service with unwanted calls. Say you are a multi state CLEC. You have multiple brands of switches (Meta, Taqua, DMS, Genband, etc...) as well as ACME and Perimeta SBCs in use. You have legacy TDM as well as SIP trunks. Your customers are served via legacy and modern methods. You have hosted PBX as well (Broadsoft). Many customers are on your LAN but many are on the internet. So that is our situation. Or you can be bigger or smaller. No matter the size I would welcome how you handle it. We have asked our manufacturers for advice but they have only provided the basic number blocking available by default on the switch. Meta and Genband have provided little other than pointing to existing features. If you have any thoughts on whether there is something we can provide based upon SIP messaging or other creative solutions that would be awesome! So I welcome a discussion on this and any advice other operators can give. Thank you very much, Matt

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Mitigating or stopping TDOS attacks - any advice?
by myaklin＠firstlight.net May 16, 2017

May 16, 2017

Mike, While interesting I am more concerned about actual denial of service attacks. Like if I hacked a couple hundred elastix pbxs and used their capabilities to hammer a customer's main number during business hours. Even though they have 50 call paths on their sip trunk it would be saturated easily and reacting takes time. Hours or more? And that assumes a trivial attack without obfuscating the calls in some fashion. Matt ________________________________ From: Mike Ray, MBA, CNE, CTE <mike at astrocompanies.com> Sent: Tuesday, May 16, 2017 7:29:49 PM To: Matthew Yaklin; 'Alex Balashov' Cc: voiceops at voiceops.org Subject: RE: [VoiceOps] Mitigating or stopping TDOS attacks - any advice? Hi Matt, You may want to look into Nomorobo. We certified with them some time ago, and they have a very interesting way of doing this. Regards, Mike Mike Ray, MBA, CNE, CTE Astro Companies, LLC 11523 Palm Brush Trail #401 Lakewood Ranch, FL 34202 DIRECT: call or text 941 600-0207 http://www.astrocompanies.com From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Matthew Yaklin Sent: Tuesday, May 16, 2017 6:22 PM To: Alex Balashov <abalashov at evaristesys.com> Cc: voiceops at voiceops.org Subject: Re: [VoiceOps] Mitigating or stopping TDOS attacks - any advice? I noticed how you mentioned asterisk and if it could handle that many calls and you seemed skeptical. Probably based on experience. After all these years I thought a single asterisk server could handle more calls in a stable fashion but it appears not. Once past 500 concurrent calls, depending on hardware and config, things start to get sketchy. It has been a while since I last used asterisk for a VM server or pbx. Those days seem long ago. Over the years we have had customers experience TDOS. While we have no current customer experiencing the issue today we wanted to research our options just in case. It seems metaswitch has a cloud based robocall blocking feature we just read about. I have to wonder if that hook in the switch could be used for something. As others have said though... gathering all this cdr info, analyzing it, and then blocking certain calls while keeping good ones is quite the task to program. And to do it really fast. One can stop trivial attacks that have a pattern but a determined attacker can be quite crafty. Thank you everyone, Matt ________________________________ From: sasha at evaristesys.com<mailto:sasha at evaristesys.com> <sasha at evaristesys.com<mailto:sasha at evaristesys.com>> on behalf of Alex Balashov <abalashov at evaristesys.com<mailto:abalashov at evaristesys.com>> Sent: Tuesday, May 16, 2017 5:01:04 PM To: Matthew Yaklin Cc: voiceops at voiceops.org<mailto:voiceops at voiceops.org> Subject: Re: [VoiceOps] Mitigating or stopping TDOS attacks - any advice? A "voice CAPTCHA" is a viable solution. But it does require infrastructure commitments on your part, even if, as you say, an Asterisk box can handle many concurrent calls. If you want to recycle that across multiple customers, that kind of moat can get mildly complicated. The only concern I would have is from a user experience point of view; your customer might not want their callers to have to go through a confusing menu, and it would doubtless be psychologically off-putting. I don't know what kind of business the customer is, but imagine if you called your dentist's office and were prompted to enter some sort of PIN. As a layperson, you might think something is wrong with the phone system. -- Alex Balashov | Principal | Evariste Systems LLC Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/

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Professional Voice Recordings
by bmurray＠transbeam.com May 15, 2017

May 15, 2017

All- I wanted to ping the group and see what you all use to generate voice recordings for customer auto attendants, greetings and announcements. We have been lucky in that we had a professional voice on our staff and he loved doing them, but he has since moved on and we're looking to see what's out there. Any input would be appreciated. Thanks Brian

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"Scam Likely" list of DIDs
by anakaoka＠trinet-hi.com May 13, 2017

May 13, 2017

T-mobile changes the cnam of a call to "Scam Likely" based on incoming DID. Does anyone know what list they are using and where to get it? Aryn H. K. Nakaoka anakaoka at trinet-hi.com Direct: 808.356.2901 Fax: 808.356.2919 Tri-net Solutions 518 Holokahana Lane Suite #200 Honolulu, HI 96817 http://www.trinet-hi.com https://twitter.com/AlohaTone Aloha Tone PBX https://www.youtube.com/watch?v=96YWPY9wCeU Aloha Tone (HA) High Availability http://youtu.be/rJsr4k0RBH8 A Better Solution https://www.trinet-hi.com/abettersolution.pdf <https://www.trinet-hi.com/abettersolution.pdf> CONFIDENTIALITY NOTICE: The information contained in this email and any attachments may be privileged, confidential and protected from disclosure. Any disclosure, distribution or copying of this email or any attachments by persons or entities other than the intended recipient is prohibited. If you have received this email in error, please notify the sender immediately by replying to the message and deleting this email and any attachments from your system. Thank you for your cooperation.

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Vonage Business
by mgraves＠mstvp.com May 11, 2017

May 11, 2017

Afraid not. I'm inquiring for a mutual customer. Spent a while talking to their tech support team. My calls to them got dropped several times. Had tons of echo from one CSR. No-one there seems to be able to tell me anything much. Michael Graves mgraves at mstvp.com http://www.mgraves.org o(713) 861-4005 c(713) 201-1262 sip:mgraves at mjg.onsip.com skype mjgraves --------- Original Message --------- Subject: Re: [VoiceOps] Vonage Business From: "Mark R Lindsey" <mark at ecg.co> Date: 5/11/17 2:33 pm To: mgraves at mstvp.com They have a lot of internal platforms; do you know which one you're on? > On May 11, 2017, at 3:31 PM, mgraves at mstvp.com wrote: > > Hi All, > > Does anyone here know if Vonage Business customers are allowed to dial by SIP URI from a company issued phone? > > Thanks, > > Michael Graves > mgraves at mstvp.com > http://www.mgraves.org > o(713) 861-4005 > c(713) 201-1262 > sip:mgraves at mjg.onsip.com > skype mjgraves > _______________________________________________ > VoiceOps mailing list > VoiceOps at voiceops.org > https://puck.nether.net/mailman/listinfo/voiceops

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