IP Polycom 550 will not connect into confrence room or send ivr commands DTMF

IP Polycom 550 will not connect into confrence room or send ivr commands DTMF

PBX in a flaxh v1.4
FreePBX
Teliax is the trunk provider

cell phones and land lines work fine, but I want IP phones to work too

[peer Details]
allow=ulaw&alaw&gsm
dtmf=rfc2833
canreinvite=no
host=nyc.telinet.net
insecure=very
nat=yes
qualify=yes
secret=********WORD
username=myusername

[user details]
type=user
disallow=all
allow=ulaw&alaw&gsm
dtmf=rfc2833
canreinvite=no
context=from-internal
insecure=very

IP PC 550 will not connect into confrence room or send ivr commands DTMF

This phone is not configured for my network, but is using another vendors service.

When I call using this phone the IVR commands and the PIN code for the confrence rooms are not reconized as valid.

I am stuck and do not know what to do?

BTW: The phone is able to connect to confrences in the provider network that he is configured on. and I have called into many IVR and confrece room on this phone in the past so I do not think that is the problem…help…