[YMCS/YDMP Free Trial Program]Yealink would like to offer Free Trial Program of Yealink device management service for our current eligible customers. You can see the details below.
https://www.yealink.com/ydmp-freetrial-2020


Post Reply 
 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Ghost Calls from Port Scanning
Author Message
Abe1048 Offline
We Love Yealink!!!
***

Posts: 87
Joined: Aug 2013
Reputation: 0
Post: #23
RE: Ghost Calls from Port Scanning
(12-04-2014 07:34 AM)bnelson Wrote:  Our service supports using TCP as the SIP transport. Adds some latency, but it can be useful for situations like this, better battery life on mobile, bypassing SIP-ALG on verizon 4G hotspots, etc...

It does use more resources on the server however.

Edit: I just tested the "Allow IP Call" = No and I am no longer able to make an unsolicited call to the extension.

Looks like newer firmware versions may have fixed this since I last tried. I will test more, and update here with results. Looks like the sip trust control is not required to kill generic sip vicious scanner calls. A more advanced scann attack might still be able to gather the extension, but I'll cross that bridge when it happens...

Hi all,

We have found that using a router with the tomato firmware fixes all theese issues.

All the best,
Abe
12-26-2014 05:02 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 


Messages In This Thread
Ghost Calls from Port Scanning - ctiefel - 11-08-2013, 10:01 PM
RE: Ghost Calls from Port Scanning - Fuur - 11-25-2014, 07:01 PM
RE: Ghost Calls from Port Scanning - Abe1048 - 12-26-2014 05:02 AM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Outgoing calls fail - Forbidden TotalNet 3 68 03-31-2020 12:18 PM
Last Post: complex1
  Direct IP Call Outside LAN with specific port BumbleBears 1 148 03-11-2020 01:50 PM
Last Post: jolouis
  Some calls missing from Paced Calls History ipandco 3 406 01-21-2020 03:30 PM
Last Post: ipandco
  Record all calls to USB dcfindlay 1 450 12-02-2019 08:39 AM
Last Post: Paz_Yealink
  Is there a way to make the "calls are forwarded on no answer TO VOICEMAIL" go away? justingoldberg 1 624 10-14-2019 06:56 AM
Last Post: Garry_Yealink
  Set PC port link to 1Gb from provisioning file avayax 1 552 09-10-2019 03:30 PM
Last Post: complex1
  SIP-T21P_E2 refusing calls issue Alvaro 1 500 09-10-2019 02:36 PM
Last Post: Alvaro
  Missed Calls not shown on T48G Germain 1 513 08-22-2019 07:54 AM
Last Post: Babylonia
  How to make Outgoing AIP URI calls? KNERD 3 957 05-08-2019 02:53 PM
Last Post: complex1
  Slow speed on the PC port Sur 4 2,119 04-12-2019 09:28 AM
Last Post: Johnny88

Forum Jump:


User(s) browsing this thread: 1 Guest(s)

Contact Us   Yealink   Return to Top   Return to Content   Lite (Archive) Mode   RSS Syndication