Call waiting disconnects first call on SPA-3102

Question

Ive got this strange problem.
When on the phone using Line 1 (voip account):
1. I hear a call waiting tone,
2. I press the flash hook and accept the second call.
3. The first one gets disconnected.
Some details about my setup:
Enabled Codecs are G.729, G.711u and G.711a
Preferred codec G.729
Use Preferred Codec Only: NO
Timer values: I found the PSTN flash hook timer value which is set at .25 sec. But this problem is when using Line 1 VoIP. So I doubt this is the issue.
Now I "think" the SPA3102 can handle two G.729 calls (I think the spa3000 only did one G.729 codec). But even if this was the case, the codec shouldn't be a problem as my provider will allow BOTH G729 and G711.
Any help with this is really appreciated !!
VoIP Addict

Answer 1

try the following values. these worked fine on a DECT phone according to another forum..
Hook Flash Timer Min: 0.06
Hook Flash Timer Max: 0.2
Callee On Hook Delay: 0
Reorder Delay: 5
CPC Delay: 0.5
CPC Duration: 0.1
Hook Flash Tx Method: NONE
--using a panasonic cordless phone Hook Flash Timer Max: .3 then set Flash Time on the phone itself to  400ms to 600ms..
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