[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.

Post Reply 
Thread Rating:
  • 0 Votes - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
T58a can’t make or receive calls after Teams-> SIP conversion
Author Message
complex1 Offline
3CX Adv. Cert. Engineer

Posts: 1,530
Joined: Jan 2014
Reputation: 45
Post: #4
RE: T58a can’t make or receive calls after Teams-> SIP conversion
(02-14-2022 12:14 AM)skintrustmd Wrote:  
(02-13-2022 11:57 PM)complex1 Wrote:  
(02-13-2022 10:44 PM)skintrustmd Wrote:  As stated in title. I followed the procedure and uploaded new license and firmware. The phone registers with voip.ms and is configured to their specs exactly. Using asus router with Merlin and tried turning sip helper off and on and putting phone ip in dmz. I even plugged the phone directly into cable modem with no luck. I think the problem is with the phone config. I tried reading th log files but I have no idea which ones to look at. One clue is that the phone doesn’t see to have valid security certificate when browsing to it’s ip or using the phone browser. Any help is much appreciated.


Did you factory reset the phone after the firmware change?

When you call, does the other phone ring and when you receive a call does your phone ring, or do you have no audio when the call is established?

Thank you for the reply! Yes, I did perform a factory reset after the firmware change. When I call in or out there is a long pause then a busy signal.

Update: I configured the phone and voip.ms to use tls encryption instead of udp. Now I can call the phone and it rings and there is two way communication! But, when I try to call out it gives a busy signal instantly and says "Not acceptable here". Any thoughts?

Maybe the router is causing the issue.
Try to open and forward the SIP port 5060 (TCP/UDP), and the RTP port range 11780 - 12780 (UDP) to your phone.
Make sure the phone has a fixed local IP-address.

Kind regards,

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.
02-14-2022 02:40 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 

Messages In This Thread
RE: T58a can’t make or receive calls after Teams-> SIP conversion - complex1 - 02-14-2022 02:40 AM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  T58a .bin and .rfs files tredd1982 1 998 03-17-2024 04:32 AM
Last Post: complex1
  Park Calls aisa 2 996 03-01-2024 10:44 PM
Last Post: aisa
  T54W is not Forwarding Calls larkspurphone 2 1,493 01-26-2024 02:58 AM
Last Post: larkspurphone
  T58A - Impossible to flash with Teams firmware algas32 4 2,796 01-12-2024 09:33 PM
Last Post: algas32
  T58A damages UH36 JFalke 0 517 01-12-2024 07:16 PM
Last Post: JFalke
  T58A and TEAMS APP schmidt_as 2 5,318 12-21-2023 09:45 AM
Last Post: Cecelia Cruz
  yealink vp59 upgrade teams msteffens 1 1,298 12-08-2023 06:40 PM
Last Post: complex1
  Teams - T56a offline in Teams admin panel after 131 brandone 16 25,488 09-06-2023 08:53 AM
Last Post: ITSourcePro
  T56A Upgrade SIP to Teams wpolakoff 1 1,661 07-12-2023 07:49 PM
Last Post: complex1
  T57W using for Teams Telephony ck@itgnt.com 1 2,052 03-17-2023 08:27 PM
Last Post: complex1

Forum Jump:

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

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