FonoSIP.com - Free SIP VoIP Internet Phone Service

This phone is a GSM/WIFI SIP phone also whitelabeled on the following devices Tovo t450g, Free.fr - "Black", Arcor Twintel and T Com (T-Mobile) TC 300

Unlocking Twintel/T-Mobile/Pirelli

With original Firmware this Phone is IETF SIP incompatible and mostly only usable on T-Com/T-Mobile and in Your case Ya.com hotspots.

But You can use the Twintel/T-One/Pirelli Firmware publicly availlable on
PC-Software (http://www.sipgate.de/downloads/pirelli/DP_L10_UTILITY.zip)
DP-L 10 Firmware (http://www.sipgate.de/downloads/pirelli/Firmware.zip)

The guys from ip-phone-forum.de have partly reverse engineered the firmware so You can add extra features like 5 SIP profiles.

But be aware You will loose any Warranty on upgrading to Pirelli Firmware and the upgrade process maybe complex and can give errors due to buggy usb drivers and maybe even kill Your phone.

Documentation and Manuals

Pirelli Dualphone PDF Manual

SIP Account Configuration:

Username: 812345 (your fonosip sip number)
Password: ****** (your fonosip password)
eMail-Address: empty.
Domain name: fonosip.com
Local port: 5060
Proxy server: fonosip.com
Proxy port: 5060
Register server: fonosip.com
Register port: 5060
Register period: 3600
Outbound server: empty
Outbound port: 5060
RTP audio port: 30000
RTP pkt. period: 20
Preferred codec: G.729
Stun Server: stun.fonosip.com
Stun Port: 3478

FonoSIP.com. We provide IP PBX Software and VPN secure centrex service. FonoSIP.com supports Xten / Counterpath SIP softphones and Internet telephony equipment such as Sipura 2000, Sipura 3000, Cisco 186, Linksys PAP2, RT31P2, WIP300. D-Link DVG-1402SL, UTstarcom F3000. Nokia E60 E61i N70 95. Symbian OS. Windows Mobile. Palm Treo, Pirelli Dualphone, Twintel, T-Mobile Dash. We also support Asterisk PBX, TrixBox and offer VoIP PBX software for businesses, resellers, ITSPs and campus applications.