Megaconference

["Egyhazi, Steven E" <>]

Jose, if your EX90 or C-series system is using TC6.x software, I’ve found you may keep SIP enabled but instead go to the unit’s web interface - Configuration – System Configuration – SIP, and in “General Settings”, turn ‘ListenPort’ to OFF. 

 

Depending on your environment, I’m not 100% certain of the implications for SIP based calls if ListenPort is turned off.  However, I think it’ll be ok, because I interpret this traffic as attempts to use the C series codec itself as a SIP VoIP gateway.  In other words, normal SIP calls via your (VCS) registrar should still work normally.   Regards, Steve Egyhazi

 

 

From: [] On Behalf Of José Luis Rodríguez (UNAM VNOC)
Sent: Thursday, January 16, 2014 12:41 PM
To: ;
Subject: RV: [Megacon] Blocking Unwanted VC Calls

 

Hi Everyone,

 

I want to comment that I have the same problem receiving incoming calls from 448099999999@different_Ip_addresses. I have a Cisco EX90 with SIP enabled. Is it a problem with SIP??

 

Regards,

 

Jose Rodríguez.

Videoconferencing Network Operations Center

UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO

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Tel: +(52) (55) 56 22 84 43

Fax: +(52) (55) 56 22 82 48

http://vnoc.unam.mx

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De: [] En nombre de Euben, Jeffrey
Enviado el: martes, 14 de enero de 2014 04:27 p.m.
Para: Michael D. Walker; Leonard, Mark;
Asunto: RE: [Megacon] Blocking Unwanted VC Calls

 

I had issues like this in the past….disabling SIP worked. 

 

 

Jeffrey Euben
Manager,  Voice, Cellular, and Conferencing Services      
ITS, Campus Technology Services         
Yale University 
P.O. Box 208317

Science Park at Yale - Building 25

Office 425

150 Munson Street

New Haven, CT.  06520-8317
TEL     (203) 432-7040

 

From: [] On Behalf Of Michael D. Walker
Sent: Tuesday, January 14, 2014 3:41 PM
To: Leonard, Mark;
Subject: Re: [Megacon] Blocking Unwanted VC Calls

 

If they were SIP, you could choose to disable the protocol
The C20 does not have a firewall.  You would need to use
a network firewall or the Tandberg VCS Expressway to block
them.

Mike

On 1/14/2014 12:33 PM, Michael D. Walker wrote:

Were these SIP calls? 

On 1/14/2014 12:05 PM, Leonard, Mark wrote:

Mega-Lister's:

 

This morning I found one of my codecs completely locked up due to what I believe were 400+ incoming calls that it was trying to answer. The calls were coming in from 442099999999 and 448099999999…

 

Does this look familiar to anyone?

Can I block incoming calls from these numbers on a Tandberg C-20?

 

As always- thanks for looking…

~Mark

 

Mark Leonard

Media & Collaboration, UNH IT

 

 

 

 

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