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Telephony and Resilience

Portsmouth Water is replacing its PSTN telephone lines with a secure, resilient digital communications system across all its sites. The supplier will design, install, and support the network through to at least August 2030, working alongside existing suppliers with no service interruption.

You'll want to look if you design and deliver enterprise telephony and wide-area network solutions for large organisations, and can manage transitions from legacy systems without downtime.

  • Must support Critical National Infrastructure connectivity
  • Must work collaboratively with existing suppliers
  • Service Level Agreement required

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