07-Oct-2016 13:19

How to Install and Configure the IP-telephony Server


Recently, users ask a lot of questions about the installation and configuration of IP-telephony servers on the forums. The most common mistake beginners make is a purchase of a server with insufficient capacity, functionality and safety margin, as well as the wrong setting. Therefore, before purchasing you must take into account the number of users connected to the device and the number of simultaneous calls in a VoIP network.

Tower server, Intel Xeon E3 series processors, E5, E7, with a high capacity for work and different configurations will be suitable for small businesses with few employees. However, if you are planning a further major expansion, the best VoIP solution for small business will be a single-frame unit, based on astrisk. Experienced professionals use it as an inexpensive way to connect to an IP-telephony. In addition, it is easy to install and configure. It is also worth noting that Asterisk runs via common protocols - IAX, H323, SIP, ADSI, and SCCP, used in many VoIP devices, which solve the incompatibility problem.

You can simply install the 250 GB drive, which will provide 1 million minutes via the phone. At the same time, it is better to buy several capacious drives to record and store conversations.

Once connected to your ISP, you need to register with the network and configure the system. It is important to take into account the dummy module. The latter is necessary to configure the trunk and create a conference. Next, one should set a prefix and a server name, and then create SIP-accounts, with the file sip.conf, indicating the host name and so on. After the macro is added and specified, it is important to register SIP-accounts and use X-lite.

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To receive incoming calls, you should specify the context, the number of registration, the host address with the expected port and interface, including a ban on unauthorized access. For outgoing calls, and prefix 8 should be set with the addition of relevant data. Setting only incoming calls, it is important to register: n user, n peer for outgoing calls only. When both incoming and outgoing calls are allowed, an n friend should be added. In the host line you should specify the IP address to allow connections for a client. To do this, you should set the address dynamic. Then again inscribe a user name and password used during registration.

When setting, it is also important to install voicemail in the appropriate language. There are three numbers and aliases that activate stdexten macro responsible for user calls. After the phone number and password are set, the subscriber is provided access to the interface to coordinate the voice box.

Next, you should set a direct connection between users. Allowing or banning it, you need to enter the user’s context name with the CallerID identification line, specifying the expand via Asterisk. It is also important to register data in the context menu, an asterisk, and then configure the IAX-device, OS and hardware Voicetronix, a sound driver for the ALSA console, speech synthesizer and Asterisk modules, including the analog device in a VoIP system. This takes into account the software or hardware clients. To test the correctness of Voip info, you need to run the command: # asterisk -vvvvvcd, specifying the console and determining the data.

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