Add External Number allows value of any length

SWVX-12864 Add External Number allows value of any length

Validation Date:1/2/2018
Affects Version: 6.6.0.3 - 6.7
Resolved Version: 6.7.1

Description: When creating an external Additional Phone under Setup -> Extensions -> Manage -> Manage Phones -> Add External Number the Prefix and External Number fields allow a value of any length to be entered. This can result in failed calls due to incorrectly entered values that do not display an error. 

Unable to render {include} The included page could not be found.