911 Call Issue on v81 Firmware

[Chris8792]

We are currently having issues making 911 calls on phones using v81 firmware, but if the calls are made using v80 they are working fine. I have a T46S with 81.0.20 firmware, the S model does not offer firmware other than version 81. Once the G models were downgraded to v80 they were fine. This was also the case on the T41P's. Any ideas of ways to resolve this issue?

Thanks.

[Klaus_Yealink]

Can you tell me what's your detail test steps?

and could you help to get the config.bin/level 6 log/config.bin files of S model and G model， then we will make a compare.

About how to get these files, please refer to this FAQ:

http://support.yealink.com/faq/faqInfo?id=311