User manual
27/1531-ANF 901 43 C 2014-01-12
Configuration Manual Cordless Phones DT4X3
11
4 Maintenance
4.1 Definitions
In the replacement descriptions, the handsets are defined as:
• "old handset" is the handset to be replaced, possibly damaged but still working
• "new handset" is the replacement handset that will get the settings used in the old
handset
4.2 Upgrade handset software
It is possible to upgrade or reinstall the software on a handset. When upgrading the
software of the handset, any data (for example, messages) may be deleted.
1 Open the WinPDM.
2 In the Devices tab, right-click the handset to be upgraded.
3 Select "Upgrade software...".
4 In the Available software drop-down list, select the desired software file (.bin).
If needed, import the software file to be used by clicking "Import". Locate the
software file (.bin or .pkg) and click "Open".
5 Click "OK".
4.2.1 Download times during upgrade of handset software
The software will now be downloaded to the handset. The following table shows the
approximately download times for handset when done over-the-air (OTA) in an IP-
DECT system, or via charger in a DECT system.
Table 1. Download times
The software download capacity depends on call traffic stated below. The table below
is not applicable for DC4 charger connected to WinPDM since IPBS or CPDM3 is not
needed.
6 Download times during calls
OTA via IPBS DC4 Charger connected to
Device Manager via Ethernet
DC4 Charger connected to
PDM via USB.
approx. 25
min.
approx. 9 min. 20 sec. approx. 9 min. 30 sec.
IPBS 0-4 simultaneous downloads depending on call traffic as follows:
No. of calls No. of possible simultaneous downloads
04
13
22
31
4 > 0










