Yealink SIP-T48G Administrator's Guide

Configuring Advanced Features
573
Parameters
Permitted Values
Default
Phone User Interface:
None
account.X.outbound_proxy_fallback_interval
Integer from 0 to
65535
3600
Description:
Configures the time interval (in seconds) for the IP phone to detect whether the
working outbound proxy server is available by sending the registration request after
the fallback server takes over call control.
X ranges from 1 to 16 (for SIP-T48G/T46G/T29G)
X ranges from 1 to 12 (for SIP-T42G)
X ranges from 1 to 6 (for SIP-T41P/T27P)
X ranges from 1 to 3 (for SIP-T40P/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
X is equal to 1 (for SIP-T19(P) E2/CP860)
Example:
account.1.outbound_proxy_fallback_interval = 3600
Note: It is only applicable to outbound proxy servers.
Web User Interface:
Account->Register->Proxy Fallback Interval
Phone User Interface:
Menu->Settings->Advanced Settings->Accounts->Proxy Fallback Interval
account.X.sip_server.Y.failback_mode
(X ranges from 1 to 16, Y ranges from 1 to 2)
0, 1, 2 or 3
0
Description:
Configures the mode for the IP phone to retry the primary server in failover for
account X.
0-newRequests: all requests are sent to the primary server first, regardless of the last
server that was used.
1-DNSTTL: the IP phone will send requests to the last registered server first. If the time
defined by DNSTTL on the registered server expires, the phone will retry to send
requests to the primary server.
2-Registration: the IP phone will send requests to the last registered server first. If the
registration expires, the phone will retry to send requests to the primary server.
3-duration: the IP phone will send requests to the last registered server first. If the
time defined by the “account.X.sip_server.Y.failback_timeout” parameter expires,

Yealink SIP-T48G Specifications

General

Expansion module support	Yes
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Volume control	-
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
AC adapter input voltage	100 - 240 V
Number of handles included	1 pc(s)

Weight and Dimensions

Width	266 mm
Height	185 mm