HDX 7000 inability to call 9 digit pstn line.

Hello Guys Am a rockey when it comes to the Polycom world, and i have a little challenge with the HDX 7000 in my company. The HDX was assigned a DID and integrated in Cisco call manager, where by access to make both local and international call was granted. But my challenge is that i can make all calls from the HDX, except for any 9 digits number. e.g 014220008.

Any idea what the issue could be ?