Hi fellow Odooers 

i wanted to add a 3 digit phone number as a internal phone number of an employee in our company but , I can successfully add it too ,

but when I press dial 

I confronted with the following error

Error:
Odoo Server Error

Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/odoo/http.py", line 648, in _handle_exception
return super(JsonRequest, self)._handle_exception(exception)
File "/usr/lib/python3.6/site-packages/odoo/http.py", line 309, in _handle_exception
raise pycompat.reraise(type(exception), exception, sys.exc_info()[2])
File "/usr/lib/python3.6/site-packages/odoo/tools/pycompat.py", line 87, in reraise
raise value
File "/usr/lib/python3.6/site-packages/odoo/http.py", line 685, in dispatch
result = self._call_function(**self.params)
File "/usr/lib/python3.6/site-packages/odoo/http.py", line 341, in _call_function
return checked_call(self.db, *args, **kwargs)
File "/usr/lib/python3.6/site-packages/odoo/service/model.py", line 97, in wrapper
return f(dbname, *args, **kwargs)
File "/usr/lib/python3.6/site-packages/odoo/http.py", line 334, in checked_call
result = self.endpoint(*a, **kw)
File "/usr/lib/python3.6/site-packages/odoo/http.py", line 929, in __call__
return self.method(*args, **kw)
File "/usr/lib/python3.6/site-packages/odoo/http.py", line 514, in response_wrap
response = f(*args, **kw)
File "/usr/lib/python3.6/site-packages/odoo/addons/base_phone/controllers/main.py", line 14, in click2dial
click2dial_id=click2dial_id).click2dial(phone_number)
File "/usr/lib/python3.6/site-packages/odoo/addons/asterisk_click2dial/models/phone_common.py", line 23, in click2dial
ast_number = self.convert_to_dial_number(erp_number)
File "/usr/lib/python3.6/site-packages/odoo/addons/base_phone/models/phone_common.py", line 140, in convert_to_dial_number
parsed_num = phonenumbers.parse(erp_number, None)
File "/usr/local/lib/python3.6/site-packages/phonenumbers/phonenumberutil.py", line 2850, in parse
"Missing or invalid default region.")
phonenumbers.phonenumberutil.NumberParseException: (0) Missing or invalid default region.

does someone know how can I reformat and validate phonenumbers to work with these 3 digit phone numbers?