Cisco PHone Proxy Question

One of the phones do not appear to be able to contacting the phone proxy public ip.  Other phones do work.  Have opened typical ports but it is not able to reach the tftp server.
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vikrantambhoreConnect With a Mentor Commented:
did u COnfigure Option 150 properly if using DHCP ?
are you able to provide a bit more detail regarding the issue?
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