Thus, even let all devices of this brand are in researching a VoIP phone left safely. Laity should generally avoid this brand. Without support in German, the device is only for professionals !!!
Update: I've found the solution. That is how it goes:
1. After the phone in the Fritz! Box has been set up successfully set Telephony / Telephony Devices / New device / phone (with or without AB) / LanWlan (IP phone) / etc
2. Do not sign up with the IP phone in the Internet Explorer in the search after the phone
3. but directly press on the phone key point / 6Telefon / SIP / account1 /
Enter and the following data:
. A SIP proxy: fritz.box
b. Outbound Proxy: fritz.box
c. SIP User ID: 622 (This number in the Fritz box see below: Telephony / Telephony Devices / credentials). With credentials assign a new password, allowing ticks at Log from the Internet and click OK
. d SIP Auth ID: 622
e. SIP Password (password described under c.
. f SIP Transport: leave the default UDP
leave the default PCMU: g Audio.
It works now. A shame that no one can say a something from the pros.
PS: If the phone is not to be registered at the Fritz box, but directly with 1und1, then the Konfig.Daten are naturally different and good googling on the net.
AAAAB: Many features will become apparent to not have it or from the website of the manufacturer all kinds of add-ons are loaded etc.
Without extremely knowlegeable in this specialized field and / or without good English skills, you can take the device do anything other than just making phone calls. That goes with other devices but already from 15 Euro equipment costs. The price of the Grandstream the functions should be easily beherschbar and learn.
My worst technical device that I have ever bought. And I'm really technikafin, only just not a professional in VoIP telephony.
