Normally there are two states of different tones with phones in Germany:
1) You go off hook - a short periodic beeping
2) You dial 0 - a long continuous tone
Now in our case if you take an analog phone connected to the VG224 and go off hook you hear directly the long provider tone. It doesn't make a difference if you dial 0 or not.
I have the same issue with public or government customers in Germany. As Moe told you, it is usual, standard, normal, if you migrate a pbx to UC to continue having this behaviour, as the Cisco IP Phones have the right call waiting tones, compared to the Siemens phones.
What is the solution for the VG224 used as sccp gateway ? The question was not resoved here.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.