Spectralink 84-Series Series Wireless Telephones Administration Guide
1725-86984-000_P.docx
September 2016
229
Enabling Proxy Servers
If your implementation uses proxy servers, make sure you enable the use of proxy
servers in your configuration file(s). If you’ve defined reg parameters, set
reg.x.server.y.useOutboundProxy to 1.
Note: Compatibility with Microsoft Skype for Business
The concurrent failover/fallback feature is not compatible with Microsoft Skype for
Business.
Fallback Deployments
Fallback deployments are most common in satellite office situations where the primary server is
in a distant location and the WAN connection may fail. The basic configuration uses a
reg.1.server.1.address and reg.1.server.2 address and the handset registers to both servers.
When a handset makes a call the invites are sent to server.1. When server.1 is unavailable, the
calling handset detects this condition and sends the invite to server.2. The handset continues to
attempt to register to server.1 with every call. When server.1 comes back online, invites are
once again routed to it.
In situations where server redundancy for fallback purpose is used, the following measures
should be taken to optimize the solution:
Deploy an on-site DNS server to avoid long call initiation delays that can result if the
DNS server records expire.
Avoid using too many servers as part of the redundancy configuration as each
registration will generate more traffic.
Educate users as to the features that will not be available when in fallback operating
mode.