[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
Yealink, provisioning and Sophos firewall
Author Message
UCUC Offline
Junior Member
**

Posts: 7
Joined: Jun 2021
Reputation: 0
Post: #1
Yealink, provisioning and Sophos firewall
Hi,

All of our phones are behind a (sophos) firewall.

All ports are open from phone network to provisioning server. (ANY to URL Provisioning)


This works, but we are seeing some strange drops on our firewall comming from the provisioning URL.

Also when we push "update Configuration" no red led is blinking.


When a phone is installed at my home internet, everything works much faster with updating, red light blinking etc.

What are we missing in our (Sophos) firewall?
(This post was last modified: 10-07-2021 03:57 PM by UCUC.)
07-01-2021 05:45 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
UCUC Offline
Junior Member
**

Posts: 7
Joined: Jun 2021
Reputation: 0
Post: #2
RE: Yealink, provisioning and Sophos firewall
Anybody experiencing this problem?
(This post was last modified: 10-07-2021 03:59 PM by UCUC.)
10-07-2021 03:58 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
complex1 Offline
3CX Adv. Cert. Engineer
*****

Posts: 1,509
Joined: Jan 2014
Reputation: 44
Post: #3
RE: Yealink, provisioning and Sophos firewall
Hi,

I'm not using a Sophos firewall, but please check if the SIP ALG feature, if any, is disabled.

Also check that all TCP and UDP ports are forwarded to the local IP address of the phone.

Kind regards,
Frank.

I am not an employee of Yealink.
Dutch is my native language, not English. Apologies for my imperfect grammar.
Please do not send unsolicited PM messages. I will not answer them.
10-07-2021 05:28 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
UCUC Offline
Junior Member
**

Posts: 7
Joined: Jun 2021
Reputation: 0
Post: #4
RE: Yealink, provisioning and Sophos firewall
Hi,

SIP ALG is disabled.

Which ports and protocol are used to communicate with yealink servers?

What do you mean with "all TCP and UDP ports are forwarded to the local IP address of the phone"

thanks
10-07-2021 06:22 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
complex1 Offline
3CX Adv. Cert. Engineer
*****

Posts: 1,509
Joined: Jan 2014
Reputation: 44
Post: #5
RE: Yealink, provisioning and Sophos firewall
Hi,

I think you may definitely say the Sophos firewall is causing the issue, because a phone at your home, and behind the router firewall, is working well.
Somehow, the phones behind the Sophos firewall can not communicate with the PBX or VoIP Provider.
In the Sophos firewall, you need to open and forward mostly UDP ports to the local IP address of your phone.
Port 5060 UDP is the most important one.
I do not know which ports your provisioning or yealink servers uses.

Kind regards,
Frank.

I am not an employee of Yealink.
Dutch is my native language, not English. Apologies for my imperfect grammar.
Please do not send unsolicited PM messages. I will not answer them.
10-07-2021 10:06 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 


Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Yealink T46U - OpenVPN to MikroTik Router isaiahsiewert 0 438 01-19-2024 12:04 AM
Last Post: isaiahsiewert
  Connect Yealink T46U to FreePBX system via Synology Site to Site VPN TF2023 0 756 10-10-2023 11:48 PM
Last Post: TF2023
  Yealink SIP-T40P Firmware UnitedTech_Support 1 2,011 05-05-2023 08:07 PM
Last Post: complex1
Question Yealink SIP-T31, 46U, 48U do not display the number of the called subscr Fedor.astrakhan 1 1,780 04-26-2023 10:05 PM
Last Post: Yisroel_MongoTEL
  Yealink T41S firmware kosif 0 1,948 12-19-2022 08:52 AM
Last Post: kosif
  Yealink T46S Forwarding does not work!! Müller 0 1,353 10-16-2022 03:38 AM
Last Post: Müller
  Yealink T42G Phone stuck at Welcome LFC 12 30,289 08-08-2022 04:16 PM
Last Post: markvdheijden
  Yealink T48S won't factory reset djcartledge 3 5,116 07-16-2022 05:16 PM
Last Post: complex1
  Ringer Loud on Yealink T46S when using WH62 Dual Headset KellyL@AlternateAccess.com 0 2,127 07-07-2022 05:06 AM
Last Post: KellyL@AlternateAccess.com
  Yealink T48s Firmware update failed dangmoss 2 7,397 02-19-2022 03:09 AM
Last Post: dangmoss

Forum Jump:


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

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