Siemens A31003-D3000-M100-01-76A9 Administrator User Manual page 64

Administration
IP Network Parameters
64
phone. After this, the communication is encrypted, and a different port is used,
thus ensuring that the phone is unambiguously connected to the correct DLS
server.
INFO: It is possible to operate the DLS server behind a firewall or
NAT (Network Address Translation), which prevents the DLS from
sending Contact-Me messages directly to the phone. Only
outbound connections from the phone are allowed. To overcome
this restriction, a DLS Contact-Me proxy (DCMP) can be
deployed. The phone periodically polls the DCMP (DLS Contact-
Me Proxy), which is placed outside of the phone's network, for
pending contact requests from the DLS. If there are contact
requests, the phone will send a request to the DLS in order to
obtain the update, just as with a regular DLS connection.
INFO: The URI of the DCMP, as well as the polling interval, are
configured by the DLS. For this purpose, it is necessary that the
phone establishes a first contact to the DLS, e. g. by phone restart
or local configuration change.
A Security PIN can be provided which is used for decrypting data provided by the
DLS during bootstrap. For further information, please refer to the DLS documen-
tation.
Data required
• DLS address: IP address or host name of the server on which the
Deployment Service is running.
• DLS port: Port on which the DLS Deployment Service is listening. Default:
18443
• Contact gap: The parameter is not used.
• Security status: Shows whether the communication between the phone and
the DLS is secure. Value range: "Default", "Secure", "Secure PIN" This
parameter is read-only.
• Security PIN: Used for enhanced security.
Administration via WBM
Network > Update Service (DLS)
OpenScape Desk Phone IP, Phone Administration, Administrator Documentation
A31003-D3000-M100-01-76A9, 02-2013