Sound problems with IP-Telefonie with Cq Armada 7770DMT (antique!)

Nextiva is a cloud based VoIP phone system, hosting lots of small and medium sized businesses nationwide. the provides UNLIMITED business calling for only $19.95 a month!! Click here for the detail about this promotion!!

Hello!

Call a piece of museum of Compaq Armada 7770DMT mine own. Windows 2000 as operating system and tries to telephone with the inserted microphone and headphones. strange to say the others hear themselves always than Echo. And I a strong noise, since I hear each ambient noise strengthened. In addition I already stated that I must leave nothing more in the mixer menu (loudspeaker in system border) under admission also always wave angeschalten I otherwise hear there with VoIP… The recording over the microphone folds also with “Wave - clay/tone out”!

Software: X-Lite
Sipserver: sipgate.at, SIPdiscount.com
Connection: Dedicated line over WLAN, rout WGR614 von Netgear

Can their me ev. help?

Thx, Benedikt

HP.: The sound chip is a ES1878. Perhaps does that help? Original driver for Windows 2000 gibt's none it there there is already too old unfortunately. Property therefore the Windowseigenen installs.

PPS.: as workaround - you know otherwise ev. Software which I use could around the echo to loose-will and those computer does not load mine too much? SJphone I however unfortunately took already tried no connection with it