t28p

  1. Solved yealink T28p remote stun provision failed

    Hi guys, I am trying to provision a yealink t28p phone with remote stun server, but something goes wrong… when the phone boots (after factory reset), I get Update skipped and does not provision If I Plug in T23g phone it works perfect on the same remote location + firewall On event log “RPS...

  2. Change phones' codec priority through templates

    Hello, We are using latest 15.5 SP6 for our 3cx and latest provisioning templates for our Polycom VVX 4xx,6xx and Yealinks T2xP (version 80502). We have been trying to change the priority of the G.711a-law codec on the phones, so that it is used first in the SDP. Our target is to change the...
    • George Ts
    • Thread
    • codec codec priority polycom priority t26p t28p templates vvx yealink
    • Replies: 21
    • Forum: Phone System / PBX

  3. Solved Yealinks not receiving INVITES while 3cx clients do

    Hello, We are under the following environment, using all the latest supported releases for each node: - 3cx SP6 (15.5.15502.6) - Yealinks T26P 6.73.0.60 - Yealinks T28P 2.3.0.60 A strange issue occurred on the following simple scenario: Incoming call from SIP trunk to E1 gateway - - > Ring...

  4. Yealink T28P automatic firmware update

    Hello, I am trying to automatically update a Yealink T28P by using the default configuration template. 3cx version:15.5.6354.2 Yealink T28P currently has 2.72.0.30 3cx holds T28P FW 2.73.0.60 3cx server includes the following line in the respective Yealink template: firmware.url =...

  5. Solved Yealink T28P not getting provisioned

    Hello, I am trying to automatically provision a Yealink T28 upon a factory reset, without any luck. Our 3cx system version is 15.5.6354.2. The phone gets the 3cx server's IP address via the right DHCP Options and then requests <MAC>.cfg file (via HTTP), but 3cx responds with 404 Not Found. I...
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