Updating and installing system dependencies

I'm trying to install all the necessary dependencies for IP telephony, but I'm constantly running into package conflicts. apt-get update and upgrade don't solve the problem, and the system starts complaining about incompatibility. I've already tried changing mirrors and repositories. If anyone has had successful installation experience on a fresh Ubuntu — please give me some recommendations. I really need them.

During the installation of IP telephony, I encountered many errors when installing dependencies. The apt install commands gave conflicts, some packages were not found. Only then did I realize that I had not updated the system and was using outdated repositories. To figure it out, I found a very useful article: https://host4geeks.com/blog/install-freepbx-linux/. The first step there is a complete system update and installation of all the necessary packages. The author gives a clear list of dependencies that must be installed for everything to work stably. After I followed the instructions, the errors disappeared. If you want to avoid such problems, start with this guide. A really worthwhile article.

Before starting the installation of IP telephony, you should update the system and install all the necessary dependencies. In most cases, errors occur due to the lack of necessary packages or conflicts between versions. Therefore, you should not skip this step. Use proven lists of dependencies and do not ignore the update - this will ensure that you get a stable installation without surprises.

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