SPA 3102 FXO outgoing calls behavior

Just configured an SPA 3102 Device with Asterisk 1.8.
Outgoing calls works fine, but I have a question:

Every time I dial from Asterisk to PSTN, In Asterisk I send all digits to SPA 3102, when I press dial
Inmediatly I see Call Connected, and start hearing ringing back tone and then remote end answers, all fine

My question is:

Once we send the call to SPA 3102 why automatically will send SIP 200 ok and then dials via PSTN?
This is causing the originator to display Connected which is misleading as call in PSTN side is stil in progress.

I want to see if this is expected behavior or my configuration can be tweaked.

Topology:

Cisco 7945 – Asterisk — SPA 3102 – Comcast — PSTN

VoIP Caller Default DP: none

->

2011-01-14 01:27:44 Local7.Debug 110.10.0.201 SIP/2.0 200 OK
To: sip:14081112222@110.10.0.201:5061;tag=8b368ab4265c243ci1
From: “99051000125296” sip:99051000125296@110.10.0.200;tag=as232e7776
Call-ID: 68a383ba353368a14c6887423956b12e@110.10.0.200:5060
CSeq: 103 INVITE
Via: SIP/2.0/UDP 110.10.0.200:5060;branch=z9hG4bK0a82b430
Contact: sip:14081112222@110.10.0.201:5061
Server: Linksys/SPA3102-5.1.10(GW)
Content-Length: 280
Content-Type: application/sdp

2011-01-14 01:27:44 Local3.Debug 110.10.0.201 FXO:Off Hook
2011-01-14 01:27:44 Local2.Debug 110.10.0.201 FXO:Stop CNDD
2011-01-14 01:27:44 Local2.Debug 110.10.0.201 [1:0]RTP Rx 1st PKT @16482(2)
2011-01-14 01:27:44 Local2.Debug 110.10.0.201 [1:0]DEC INIT 0
2011-01-14 01:28:00 Local2.Debug 110.10.0.201 [1:0]LAT-- 6(2)
2011-01-14 01:28:08 Local2.Debug 110.10.0.201 [1:0]LAT-- 6(2)
2011-01-14 01:28:16 Local2.Debug 110.10.0.201 [1:0]LAT-- 5(2)
2011-01-14 01:28:24 Local2.Debug 110.10.0.201 [1:0]LAT-- 4(2)
2011-01-14 01:28:32 Local2.Debug 110.10.0.201 [1:0]LAT-- 3(2)

Attached logs

Thanks