Unify OpenScape Cordless IP V2 Administrator Documentation page 42

Provider and PBX profiles
Configuring telephony server profiles
 Select which calls should be accepted:
Secure Real Time Pro-
tocol
Accept non-SRTP
calls
Redundancy settings
Redundancy - DNS query
VoIP providers provide SIP server redundancy for load balancing and service reliability. SIP servers can be iden-
tified by DNS using different queries:.
A Records just the specified IP addresses and the related port numbers.
SRV + A Finds an available server port for the specified proxy and registration server. DNS SRV allows a client to
only have to know what type of service it is looking for instead of the actual server.
Failover server
If Redundancy - DNS query = A
In case your provider supports a failover server you can enter the data here.
 Enable/disable the use of a failover server via the radio boxes next to Enable registration.
Registration server
 Enter the IP address or the (fully qualified) DNS name of the failover registration server.
SIP server port
 Enter the communication port used on the failover registrar.
Range: 1-65535; Default: 5060 (for UDP/TCP), 5061 (for TLS)
42
Security is activated for voice connections.
Insecure calls are accepted even when SRTP is activated.
P31003C1020M1000276A9, 01/2018
OpenScape Cordless IP V2, Administrator Documentation