[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
T42S Inbound Call Issue
Author Message
rtang Offline
Junior Member
**

Posts: 3
Joined: Aug 2014
Reputation: 0
Post: #1
T42S Inbound Call Issue
Hi Guys

I am working on a rate issue at the client today.

Issue:
One of the phones failed to receive inbound calls randomly. To look into it further, I've done a Pcap on the SIP server end to see how that phone behave. The result indicated the SIP server is sending call invites to all 5 phones. And, only the problematic phone responses to the invite with "SIP 302 moved temporarily" whereas the other 4 phones responses with "SIP 180 Ringing".

Here are the spec and setup:
> 5 x T42S (Firmware: 29.88.0.90)
> DND: disabled
> Busy call forward: disabled
> Always call forward: disabled
> Local Directory: 14 pages with approx 145 entries
> All phones are connected to the same VoIP Service, internet connection and local switch

Attempted Solution:
-> Firmware update (Failed to address issue)
-> Factory reset (Failed to address issue)
-> Change the local network port and cable for the connection (Failed to address issue)
-> Checked local directory - blacklist (It is already empty)
-> Deleted all entries in the local directory (It addressed the issue)

Any idea what is the possible cause and fix for this issue, if the customer still want to use the Local Directory?

Thanks!

Roy
12-20-2019 04:57 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
complex1 Offline
3CX Adv. Cert. Engineer
*****

Posts: 992
Joined: Jan 2014
Reputation: 26
Post: #2
RE: T42S Inbound Call Issue
(12-20-2019 04:57 AM)rtang Wrote:  Hi Guys

I am working on a rate issue at the client today.

Issue:
One of the phones failed to receive inbound calls randomly. To look into it further, I've done a Pcap on the SIP server end to see how that phone behave. The result indicated the SIP server is sending call invites to all 5 phones. And, only the problematic phone responses to the invite with "SIP 302 moved temporarily" whereas the other 4 phones responses with "SIP 180 Ringing".

Here are the spec and setup:
> 5 x T42S (Firmware: 29.88.0.90)
> DND: disabled
> Busy call forward: disabled
> Always call forward: disabled
> Local Directory: 14 pages with approx 145 entries
> All phones are connected to the same VoIP Service, internet connection and local switch

Attempted Solution:
-> Firmware update (Failed to address issue)
-> Factory reset (Failed to address issue)
-> Change the local network port and cable for the connection (Failed to address issue)
-> Checked local directory - blacklist (It is already empty)
-> Deleted all entries in the local directory (It addressed the issue)

Any idea what is the possible cause and fix for this issue, if the customer still want to use the Local Directory?

Thanks!

Roy

Hi Roy,

Firmware 29.88.0.90 isn't native Yealink firmware, I guess.
Also this is firmware for a T42G, not T42S.
What I want to suggest is to flash the phones with the latest firmware and try again.
You can download the latest firmware from here:
http://support.yealink.com/documentFront...umentId=11

Hope this will help.

Kind regards,
Frank.

Dutch is my native language, not English. Apologies for my imperfect grammar.
Please do not send unsolicited PM messages. I will not answer them.
12-20-2019 12:33 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Yisroel_MongoTEL Offline
Member
***

Posts: 132
Joined: Jul 2017
Reputation: 4
Post: #3
RE: T42S Inbound Call Issue
As complex1 wrote, first clarify the model and have the normal latest Yealink firmware installed.

But when looking at the SIP PCAP Capture what are the details (destination and reason) in the Diversion header of the 302 message? You should be able to get a clue from their what settings it might be.
12-20-2019 06:34 PM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Babylonia Offline
Junior Member
**

Posts: 37
Joined: Jun 2019
Reputation: 0
Post: #4
RE: T42S Inbound Call Issue
(12-20-2019 04:57 AM)rtang Wrote:  -> Deleted all entries in the local directory (It addressed the issue)

Any idea what is the possible cause and fix for this issue,
if the customer still want to use the Local Directory?

Did you try to import a "fresh" list of telephone entries.
And do you have the problem again for inbound calls ?

Could be that the original Directory list of entries do have corrupted data?
12-22-2019 05:45 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Yisroel_MongoTEL Offline
Member
***

Posts: 132
Joined: Jul 2017
Reputation: 4
Post: #5
RE: T42S Inbound Call Issue
(12-20-2019 04:57 AM)rtang Wrote:  -> Checked local directory - blacklist (It is already empty)
-> Deleted all entries in the local directory (It addressed the issue)
Oops, I missed this....

I think it is obvious that it is a "Auto Divert" setting in the Local Directory. Auto Divert is meant to "Forward" calls from this contact when they call to a different destination.

The issue occurs usually when importing a directory file and not going through all the columns while doing the import, and the "Auto Divert" column gets filled in by one of the other columns in the file.
12-22-2019 07:36 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
  T42S Headset Button Hangup absoffthewake 1 939 11-13-2020 09:34 PM
Last Post: smuser
  OpenVPN issue with SIP/UDP fredoch 0 110 11-10-2020 03:47 PM
Last Post: fredoch
  T42S factory reset without default password JeffWilkinson 12 2,495 11-03-2020 02:26 PM
Last Post: Jay_Yealink
  Feature request - X header, disable missed call DarrenWilliams 0 230 10-14-2020 02:52 PM
Last Post: DarrenWilliams
  T42S call log / journal always empty hausrocker 2 382 10-08-2020 10:05 AM
Last Post: hausrocker
  Conference Bridge Issue with # TampaVoip 3 418 09-15-2020 05:20 PM
Last Post: complex1
  Forward call before answering ostrunk 3 769 08-20-2020 02:47 PM
Last Post: complex1
  Automatic redial after call transfer PCGYeah 0 518 06-10-2020 02:55 PM
Last Post: PCGYeah
  T46s / T42s apple airpods Dwagner 3 2,403 04-19-2020 05:07 PM
Last Post: complex1
  T42S or T23G - busy signal Emir_Sa 7 2,410 03-13-2020 12:14 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