May 2011 - VoiceOps - lists.voiceops.org

OpenSIPS/Kamailio serving far end nat traversal
by sipphoneguy＠gmail.com May 26, 2011

May 26, 2011

Has anyone successfully deployed OpenSIPS/Kamailio to do far end nat traversal for endpoints? I am looking to deploy something similar to either of these products to handle our IP endpoints at the edge of our network for work at home agents and dont want to spend big money on an SBC to do it. Thanks for your input and help in advance. -SIPguy

3 5

Inbound DID pricing model
by compuwizz＠gmail.com May 26, 2011

May 26, 2011

So now that Verizon decided to change their pricing from Unlimited Channels/Unlimited Minutes inbound DID pricing to being charged per minute for inbound calls, is there another carrier that offers the old model pricing? I know most carriers do either 1) Unlimited channels and per minute pricing or 2) Per channel pricing / Unlimited minutes. This topic is probably in a grey area for this list so I apologize if I offend anyone. ~Jared

1 0

Port out info for Charter Fiberlink - MA
by matthew＠corp.crocker.com May 25, 2011

May 25, 2011

Does anyone have the port out information for Charter Fiberlink -MA? I have a couple of LNP requests to get into them and their customer service reps are clueless to the process. URL for their CSR interface or TN to their LNP department would be great. Thanks -Matt -- Matthew S. Crocker President Crocker Communications, Inc. PO BOX 710 Greenfield, MA 01302-0710 http://www.crocker.com P: 413-746-2760

1 0

Fraud fun
by l_mysterioso＠yahoo.com May 20, 2011

May 20, 2011

I'm not sure what your requirements are but, we recently blocked all non-ARIN IP space from reaching our registrars. We had something similar happen and this has?essentially?eliminated the fraudulent calls we saw. Thanks, ?Spencer ________________________________ Message: 1 Date: Tue, 17 May 2011 15:53:15 -0700 From: Darren Schreiber <d at d-man.org> To: "VoiceOps at voiceops.org" <VoiceOps at voiceops.org> Subject: [VoiceOps] Fraud fun Message-ID: <C9F84A6B.2097A%d at d-man.org> Content-Type: text/plain; charset="us-ascii" Hi folks, We have been hit twice in the past two days with calls to 011-252-XXXXXXXX (calls to Somalia I believe, and the originating IP is from Pakistan) It's the same user each time, I think he had a weak password, but it cost us over $100, which isn't too bad (we catch it quick) but I'd like to get it closer to $0. :-) Any good recommendations for IP ranges to block from incoming connections? Thanks, Darren Schreiber CEO / Co-Founder 2600hz? |? www.2600hz.com<http://www.2600hz.com/> sip:darren at 2600hz.com tel:415-886-7901

7 9

Low-volume international VoIP carrier
by carlos＠televolve.com May 19, 2011

May 19, 2011

We do a very small amount of international traffic, but for the customers who need it, we have to provide it. Right now we mostly use Simple Signal for that traffic, but we have both random and recurring issues (like right now we can't call Ireland mobiles). I'd like to add a second carrier, or make a switch. Any suggestions on a good international carrier with low minimums? -- Carlos Alvarez TelEvolve 602-889-3003

1 0

Fraud fun
by d＠d-man.org May 19, 2011

May 19, 2011

Hi folks, We have been hit twice in the past two days with calls to 011-252-XXXXXXXX (calls to Somalia I believe, and the originating IP is from Pakistan) It's the same user each time, I think he had a weak password, but it cost us over $100, which isn't too bad (we catch it quick) but I'd like to get it closer to $0. :-) Any good recommendations for IP ranges to block from incoming connections? Thanks, Darren Schreiber CEO / Co-Founder 2600hz | www.2600hz.com<http://www.2600hz.com/> sip:darren at 2600hz.com tel:415-886-7901

2 1

Fraud fun
by abalashov＠evaristesys.com May 18, 2011

May 18, 2011

On 05/18/2011 12:59 PM, J. Oquendo wrote: > On 5/18/2011 12:46 PM, Alex Balashov wrote: >> Ghetto, but goes a long way in helping harden individual Asterisk >> servers on which one has no choice but to leave the SIP call agent >> open to the public Internet: > > http://www.infiltrated.net/scripts/moreghetto.txt > > You could also use the VABL to block known idiots: > > wget -qO - www.infiltrated.net/vabl.txt | awk '{print "iptables -A INPUT > -s "$1" -j DROP" |"sort"}' | uniq | sh > Indeed. I'm a huge fan of http://countries.nerd.dk as a place to get a list of all non-ARIN net block assignments and firewalling those off. -- Alex Balashov - Principal Evariste Systems LLC 260 Peachtree Street NW Suite 2200 Atlanta, GA 30303 Tel: +1-678-954-0670 Fax: +1-404-961-1892 Web: http://www.evaristesys.com/

4 6

Pacwest problems?
by jay＠west.net May 18, 2011

May 18, 2011

Anyone else seeing problems reaching Pacwest via SIP? -- -- 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

5 10

ITW
by zavoid＠gmail.com May 17, 2011

May 17, 2011

Is anyone headed to ITW next week in DC? I'm up for getting a few drinks with some fellow voiceops people if anyone else is headed there. Colin

2 1

Wireshark Voip Calls Filter with no RTP
by kleclaire＠mywdt.com May 16, 2011

May 16, 2011

Hello All, I've recently upgraded to Wireshark 1.4.6 for MacOSX and have found that now when you do a Telephony->Voip Calls on a capture and then use that to prepare a filter, the filter no longer includes the RTP packets. It seems that the filter has changed from being packer # based filter to a filter based on the SIP Call-ID field and thus no RTP is filtered here. Is there a way to change this or have it got back to filtering the RTP as well? Thanks, Keith

1 0