DP-L10 - VoIP-Info

The Pirelli Discus (TM) DualPhone DP-L10 is a nice WLAN-phone with mixed GSM/VoIP-capabilities.

It’s branded by some ISPs and is also known as:

Quick Review (after one day playing with it):

firmware is not available by Pirelli
WLAN with WPA2-PSK works great (password length is limited), EAP did not work but could have been my setup
hidden functions (###800# engineering mode, ###810# Remove User Data!, ###520# Show Version)
DTMF is send as audio? (did not check further:echo test cancel with # does not work, some external Voicebox does not work, but DISA works)
only one SIP-account supported (but there exists reports with multiple accounts in other firmwares)
modern design, acceptable quality
integrated browser for WAP and Web (limited use, only simple pages)
interoperability with asterisk was no problem
supports multiple simultanous VoIP-calls (no conferencing)
configuration via phone menu no browser (quite a job entering the WPA2 key)
Windows based update software

After using it for a couple of days here are my issues:

the firmware are more or less the same, Arcor has the latest version, but DTMF does not work for me (seems to be inband)
I had some limited luck setting up my own provisioning: Firmware update via Web is much easier if you got no Windows box :), I was also able to change some settings via my own provisioning file that I found in the image (enable some more codecs) but I wasn’t able to enable DTMF via RTP (what worked in another firmware)
I bounced into an ugly bug that made me almost crazy: I noticed, that all incoming calls were silent (in/out) when picked up, outgoing was just fine. What looked like some NAT/RTP related issue was some kind of bug that was caused by some headset-logik. When I wasn’t using the phone it was in the charger where I couldn’t keep the headset plugged in. When somebody called me, I picked it up and answered – no sound. When I plugged in the headset it worked. I “solved” the problem with a factory reset….
I didn’t test the GSM, so no results for that part
If you register to asterisk, set “qualify=no” to increase standby time on battery

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