Vodafone r215 firmware and voip issue

[redocili]

Hello
I'm using a vodafone r215 with data plan vodafone sim.
Recently i upgraded he device with vodafone firmware v6.0 from official vodafone site.
Since this i lose voip functionality ( i can't use voip anymore with attached devices ).
With my data Plan sim is allowed to use voip.
I need assistance to upgrade /downgrade the firmware to 3.1 version (with which voip works flawlessy ) or a not bugged superior version.
Thanks

[redocili]

==============

sorry, double post.

[BandOfBrothers]

Hi,

Im not sure if this link will help. 

http://www.huaweiflashfiles.com/2016/02/huawei-vodafone-r215-firmware-v31.html#

A Google search may help. 

[redocili]

it doesn't work

it seems not possible to downgrade (v6.0 -> v3.1).

[BandOfBrothers]

Sorry to hear that.  

Vodafone read all the posts here on their forum so I'm sure this issue will be fed back. 

[Sukhi]

@redocili It's not possible to downgrade the software.

Please see Firmware faq's for more info

[redocili]

Thanks for reply...but what can i do?

there are any plan to release a firmware update?

it's odd that verison 6 blocks voip traffics or voip port...a bug?

[Sukhi]

@redocili There maybe be future updates available. Please keep an eye on our firmware page for more info.