[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
T48G + T46G do not respond to incoming call
Author Message
miclan Offline
Junior Member
**

Posts: 2
Joined: Dec 2014
Reputation: 0
Post: #1
T48G + T46G do not respond to incoming call
Both phones are inside a LAN.
The SIP-PBX is in an external WAN.
Both phones always work perfect with outgoing calls.

The problem occurs with incoming calls:
Just after booted, both phones are reachable for incoming calls, sometimes.
But most of the time the phones cannot be connected from the external PBX.

Interresting:
Two different softphones from other venders in the same LAN work perfectly well for incoming calls with that external PBX.

The PBX vendor (Starface) analyzed the PBX logs and says:
The softphones might have a relative short keep alive signal period which keeps the way through the NAT router.
But the Yealink phones seem to have a very long keep alive every 60 minutes or so and it might be, that the NAT-router does not hold it's NAT-tables for such a long period and therefore starts to deny before the next keep alive signal.

Question:
Is it possible to shorten the keep alive signal period at the T46G and T48G?

Or do you have another suggestion?
(This post was last modified: 12-04-2014 01:01 AM by miclan.)
12-04-2014 12:55 AM
Find all posts by this user    like0    dislike0 Quote this message in a reply
Post Reply 


Messages In This Thread
T48G + T46G do not respond to incoming call - miclan - 12-04-2014 12:55 AM

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
Brick MP50 stuck after call transfer af@benenden.school 4 1,310 12-22-2021 07:24 PM
Last Post: af@benenden.school
  MP50 won't initiate a call on a Mac (Big Sur) computer? microdaft 1 1,276 11-21-2021 07:17 PM
Last Post: georgedendle
  Cannot disable audible Park notifications during active call livehappy42 3 1,249 11-13-2021 09:11 AM
Last Post: livehappy42
  T57W Call Park Alert bcramer 1 2,300 10-29-2021 05:33 AM
Last Post: livehappy42
Sad T22P No Sound on Call Pick Up oaltinsoy853 1 1,148 10-19-2021 07:22 PM
Last Post: complex1
  T58 Call Park and Transfer Problems user42491 1 1,776 08-03-2021 09:24 PM
Last Post: complex1
  t46g: intercom over speaker rather than headset? asinshesq 23 59,184 07-28-2021 11:04 PM
Last Post: russman
  VP59 Teams issue with incoming sound btpuk 0 2,421 11-24-2020 06:57 PM
Last Post: btpuk
  T58A SCA Shared Call Appearance with Call Manager cm_y 1 4,147 11-15-2019 09:42 AM
Last Post: Jacky_Yealink
  T29G can't hang up call unless end call is pressed Bizfon 1 4,309 11-14-2019 07:51 AM
Last Post: Paz_Yealink

Forum Jump:


User(s) browsing this thread:

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