Call forwarding always to internal or external # fails in inbound calls w/SIP trunk. Pick up and transfer works.

Hi,

We just moved to Nuvox as a SIP provider. Previously we had POTS lines.

When a call comes in the SIP trunk, previously we used a "connection plar opx 599" on the voice-port to forward inbound calls immediately to the auto attendant.

Now, I'm trying to use ephone-dn functionality to accomplish the same thing. When you call, you receive the message "Sorry, all circuits are busy" ... however, if I take the forward all off, and pick up that line with a phone, then I am able to transfer the call to ext 599 without any issues. I have tested with an internal and external # for the destination.

Here is the applicable config, I believe. Any thoughts?

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voice service voip
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
supplementary-service h450.12
no supplementary-service sip moved-temporarily
no supplementary-service sip refer
fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback pass-through g711ulaw
sip
header-passing
registrar server expires max 3600 min 3600
no update-callerid

--
dial-peer voice 1000 voip
permission term
description ** Incoming call from SIP trunk (NuVox) **
voice-class codec 1
voice-class sip dtmf-relay force rtp-nte
session protocol sipv2
session target sip-server
incoming called-number .%
dtmf-relay rtp-nte
fax rate 14400
fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback pass-through g711ulaw
ip qos dscp cs5 media
ip qos dscp cs4 signaling
no vad

--
ephone-dn 17 dual-line
number 3144310358 no-reg primary
label GadellNet
call-forward all 200

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THANKS!
-Joe