212
COMmander 6000/R/RX - Firmware V7.0D - Advanced Information V19 04/2018
Functions, Uses, Concepts
VoIP
4. Create at least one VoIP account in the PBX and enter the account and
access data.
5. Enter your own VoIP phone numbers.
6. Set up call distribution (for incoming calls).
7. If necessary, enable DiffServ in order to increase VoIP call quality.
8. Check whether the registration of the VoIP account was successful
(
Monitoring > Status VoIP accounts
).
Note:
If no calls are possible via VoIP, although account registration and
perhaps even an initial call were successful, this might have something
to do with a very short timeout configured in the firewall. Reduce the
Interval for NAT Keep Alive
for all of the providers used (
Public
switched tel. networks > Voice over IP (VoIP) > Provider >
Configure
).
Configuring Internal IP Telephony
Requirements:
•
Internal VoIP channel (optional, see Technical Data in the Instructions)
Proceed as follows:
1. Configure a VoIP channel as an internal VoIP channel for each planned
internal VoIP subscriber.
2. If necessary, configure the
SIP port of the internal VoIP registrar
.