In my previous post, I am asking about SIP attacks/scans.  Which has left me wondering if we need a dedicated firewall between the UC320W and our internet connection.  Given the setup below, do you have recommendations on what firewall I should be researching? small office with 10 computers and 10 cisco SPA508G phones. Cisco SB200-26 managed switch Cisco UC320W unified communications server no VPN necessary no wireless networking necessary. connection to 20Mb DSL ( dsl modem in bridge mode ) UC320W in Blended Mode (FXO and SIP trunk) topology: UC320W is routing voice and data I am not a network engineer (software's my day job) and really liked that the 320 configured my switch for me and took care of the vlans, etc.  I'd like to preserve that simplicity if possible. Thank you for your help, Todd ... View more

Hello:   We are starting to get more and more SIP Vicious scans.  Today, we received a scan and now when some (but not all) of our phones dial extension 100, instead of "To: 100" we see "To: sipvicious". I understand most SIPV scans are attempts to enumerate VOIP systems for potential exploitation with the end goal often being using the switch to dial out at no cost to the attacker.  Listed below are the things I'm checking, since the owner and staff are freaking out a bit: The CDR records (nothing suspicious there) The VOIP trunk provider CDR logs (nothing suspicious there) System Logs (nothing suspicious, but do not go back to the timeframe of the scan) So I have a couple of questions: 1.  Why is "sipvicious" showing  up when a  user dials 100?  (I've looked through all config options on UC320W but didn't see anything amiss) 2.  Are there known sip vulnerabilities in firmware 2.3.2(6)? 3.  Are there settings in the UC320W that would help mitigate these SIP Scans? Thank you for help, Todd ... View more

Hi, I have 5 SPA-508G IP phones.  I need to upgrade them to the latest firmware.  I'm in a windows free environment.  I have a couple of linux systems at my disposal. (ubuntu if it matters).  Anyway, I've searched and searched and can not find a simple guide to how to upgrade the phones firmware.  If someone could be so kind as to give me a nudge in the right direction, I would be very appreciative. Thanks, Todd ... View more

A reviewer on Amazon stated the following: " In theory the 320w can support both SIP and analog lines, with one big limitation. BOTH SIP AND ANALOG LINES MUST SUPPORT 10 DIGIT DIALING, EVEN FOR LOCAL CALLS. Analog and SIP lines must use the same dial plan! AT&T POTS lines do not support 10 digit dialing of local numbers, SIP providers require ten digits. Hence I can't add SIP lines unless I replace all our POTS lines." Is this true?  My concern is that in our location, the analog lines use 7 digit dialing.  This could be a show stopper if true. ... View more

Hello: I am thinking of purchasing the UC320 for my wife's small law office.  In my day job, I'm a software engineer, but by night I'm their IT support.  I have attempted to build a freeswitch system from scratch, but have only been partially successful.  My efforts have brought me to the conclusion that the office needs something more solid and with commercial support.  I found the UC320 and it seems to meet our needs, but having been burned before, I thought I would post a couple of questions to this forum before purchasing. First, about the office:  5 phones ( Cisco SPA508 ) currently tied to a partially working freeswitch server over gigabit Ethernet network.  There are two analog telephone lines coming into the office.  The Internet connection is DSL on one of the analog lines (20mb down/875kb  up, if memory serves).  The only real requirement: reliable phone service.  (if Internet or SIP is having problems, analog will work, and vice versa...). Questions: 1.  The DSL provider's modem acts as a router currently.  Would it be better to convert it to a bridge and get a static IP from the provider? 2.  Current network is an on an unmanaged gigabit switch, and I understand that the UC320 uses VLANs.  Would it be better/necessary to get a managed switch like the Cisco Small Business 200 Series SLM2008T-NA Smart 10/100/1000Mbps SG200-08 Gigabit Ethernet Switch.  3.  A reviewer on Amazon stated the following: " In theory the 320w can support both SIP and analog lines, with one big limitation. BOTH SIP AND ANALOG LINES MUST SUPPORT 10 DIGIT DIALING, EVEN FOR LOCAL CALLS. Analog and SIP lines must use the same dial plan! AT&T POTS lines do not support 10 digit dialing of local numbers, SIP providers require ten digits. Hence I can't add SIP lines unless I replace all our POTS lines." Is this true?  My concern is that in our location, the analog lines use 7 digit dialing.  This could be a show stopper if true. Thanks for taking to time to read this longish post and thanks in advance for any answers, pointers, or advice that you can provide. ... View more