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| What type of network does the PB-ISDN need? |
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- Because the ISDN service is clock-locked and ideal for synchronous applications, it is important that the Jitter or Packet Delay Variation (PDV) is within certain limits so data arrives in time for the clock pulse
- Typically PB-ISDN will be used on a managed Packet Network.
- Quality of Service ( QoS) support within the network ensures low packet loss and fast responses.
- Ethernet, IP and MPLS networks can be used. VLAN tagging is supported.
- Under some circumstances Broadband Internet can be used .
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