Voice over IP (VoIP) Quick Start
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9.1.3 Internal SIP Telephony
SIP telephones connected via LAN or SIP telephony software on LAN workstation
computers can also be operated with the OpenCom 130 / 150.
Note: The OpenCom 131 cannot be operated with a Media
Gateway card. This is why SIP telephony is not supported.
1. Install a Media Gateway card (see MGW Interface Card starting on page 114).
2. Call up the Configurator and go to the page Telephony: Ports: Slots. Click on
the corresponding slot. Under Configured, select MGC VoIP. Optional: enter
an IP address from the OpenCom 100 IP network which is not being used, such
as 192.168.99.253 under IP Address Configured. Click on Apply.
3. Call up the Telephony : Devices: VoIP Phones page in the Configurator. Click
on New. Select the “SIP” option under Type and enter an internal Phone No.
Click on Apply.
4. Call up the User Manager: User page. Assign the new internal call number to a
user.
Tip: Internal SIP telephones can also be operated by users without
passwords. If you do not assign the call number of the SIP tel-
ephone to a user, you can only configure a “Guest” user ac-
count on the SIP telephone.
5. An internal SIP telephone can be operated with a dynamically assigned IP
address. If the SIP telephone has its own Web interface, for example, a static IP
address can be practical. Click on New on the Network: DHCP page. Enter the
MAC address of the SIP telephone and an available IP address and click on
Apply.
6. Configure the SIP telephone or the SIP telephony software. Please also refer to
the configuration help on the Telephony: Devices: VoIP Phones page. For the
desired call number, click on (Help) and select a suitable help page under
Type.
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