T41P-Call Forward Off Code don't work ??

[flgh]

Hi,
i have a single fon T41P on Digibox Premium (like Bintec be.ip) und use Call Forwarding extern in the German Telekom PSTN with the codes switch on *21*target Number# and switch off #21#. I use not the intern codes of Digibox *11 and #11.
Parameters in Yealink:
forward.always.on_code = 0*21*
forward.always.off_code = 0#21#

When i switch on the Call Forwarding, the function is OK. But the code for switch off dosn't work. In the log of Digibox i can see that the Yealink sends the switch off code with the target Number. I think that is the bug. Can you fix it? In firmware T41-36.81.0.110 it works fine. In all newer firmwares it is not OK.

Trace Digibox:
2020-02-01 09:40:10.085 MESSAGE tpl.c( 960) :
--> from <192.168.99.197:5060;transport=udp>
INVITE sip:0#21#01716578929#@192.168.99.254:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.99.197:5060;branch=z9hG4bK2915600711
From: <sip:65@192.168.99.254:5060>;tag=2162311559
To: <sip:0#21#01716578929#@192.168.99.254:5060>
Call-ID: 0_316117378@192.168.99.197
CSeq: 1 INVITE
Contact: <sip:65@192.168.99.197:5060>

I read in this Issue the same problem (for T46G) >>> (Why only fixes for 46G and not for all other Products ??):
http://forum.yealink.com/forum/showthrea...7&pid=#pid

Thanks for help, flgh