Description:

The role was to be the SPOC (single point of contact) for one of three divisions.

The main purpose of the project was to extend the private address space for mobile data users. Due to the operator’s strategy of assigning private IP addresses to the users’ devices and the fact that the operator did not only have mobile data users, but was providing access via WLAN as well, the IP address space was getting close to its limits.
The resolution for this problem was seen in re-using the addresses (10.x.x.x) several times over by creating several virtual address spaces for internal-only re-use (e.g. 11.x.x.x, 12.x.x.x, 13.x.x.x).  

The project itself was run by the core network division, but other divisions – who were system owners of many systems along the traffic path – needed to be involved.

Responsibilities:

• Ensure that all systems along the communication and signalling paths were capable of dealing with re-use of the IP addresses.
• Coordinate the design, development (internal and external), test, and implementation activities and ensure that they took place according to requirements, timelines and budget as provided.
• Coordinate issue resolution across all systems involved, including issues across systems from different vendors and systems owned by multiple divisions.

Duration:

• 13 months

Client:

• T-Mobile Deutschland GmbH, Germany