In some areas in the US carriers require that called party numbers sent to the PSTN by an enterprise need to differentiate between different destination types. For example in NPA 816 these number formats are required:
- HNPA local: 7D
- FNPA local: 10D
- HNPA toll: 1+10D
- FNPA toll: 10+10D
Here HNPA and FNPA stand for home (same NPA as caller) and foreign (different NPA than caller) NPA.
With this Python script for a given NPA/NXX the required called party transformation patterns or route patterns can be provisioned in Cisco UCM to make sure that +E.164 called party information is properly transformed to the required number format. The information needed to determine the transformations is obtained from localcallingguide.com
To run the Python script:
- install the latest Python 3.x relase from https://www.python.org
- create a virtual environment for this project (optional, you can also use the main Python instance)
- install the requirements for this project:
pip install -R requirements.txt - run the script:
python pynanp.py --help