Zoiper on Windows 8.1 hangs up on all calls after 40 seconds.

Question

When someone calls me, Zoiper hangs up automatically after 40 seconds or so.  I am using Windows 8.1 on a Surface Pro 3 with a Bluetooth headset.  Can someone help?

Answer 1

Call ending after ~30 sec is a NAT related issue. Please changing STUN and rport options in the account configuration. Try different combinations. With Zoiper 3 there is another setting you could alter - "Open random port above 32000" for SIP. You can find the option in "Preferences"-"Advanced"-"Network" sub-tab.

Comments

Thank you- unchecking the "Open random port above 32000" fixed the drop problem. But will I lose any call features by doing this?