Voice over IP (VoIP)
109
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 119).
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 tele-
phone to a user, you can only configure a “Guest” user account
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.
7. You can only conduct a certain number of telephone calls simultaneously with
internal SIP telephones. The number licenced can be viewed on the System:
Licences page. The number of SIP telephones currently licenced can be deter-
mined on the System Info: Telephony: SIP phones page. If you click on Reset
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