Because of improvements in the software like adaptive jitter buffer and other new features we strongly advise to factory reset the device after the upgrade.
Name of SIP account is flickering
SRTP and TLS - no outgoing RTP packets
Robot voice with latest software versions
SRTP parameter is not set after provisioning (you have to save web ui page manually)
Turkish language for MMI and Web GUI
Name out of phonebook entry is not shown after SW-update to V02.00.10
Incoming call behind Gigaset T300/T500 not possible incoming invite is answered with "BAD request".
CALL-ID should be changed because of SIP ALG routers.
XML code on BLF key via provisioning 64 characters.
In case of Static IP address, speech path is distorted.
Provider TELES: Reboot occurs if own number dialled
[Provisioning] B_UNATTENDED_XFER does not work.
DExxx rejects INVITE
B_AUTOMATIC_DTMF_(N) does not work when downloading profile from country list.
Wrong default setting MWI
INVITE problem with a terminating application.
No reaction to the 407 Proxy Authentication Required on sending REFER
Quoted Display Name must allow comma sign.
Transferor reboots after performing "consultation transfer before answer".
Not possible to make call from telephone book after upgrade.
LDAP - empty entry (no phone numbers) - device will reboot.
One way audio with ZTE IMS Core platform.
[Alarm] If we pick up the handset when alarm clock is ringing and then press “OFF” nothing will happen (alarm will be ringing).
If PAI available Diversion User Part is not displayed.
LDAP: wrong timezone is displayed when viewing LDAP entry
Provisioning: Certain Parameter not adopted in combination with Extended_Profile.