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Voice Feature Guide 01

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POTS IP SPC

POTS IP SPC

The semi-permanent connection (SPC) exclusively occupies a constant voice channel to meet the communication requirements and ensure the communication quality for special and key access users. To configure an IP SPC, set up an IP direct connection between the two ends of the voice service. In this manner, the voice media data can be directly transmitted to the peer end.

Networking Description

Figure 1-101 shows the networking of a POTS IP SPC. An IP SPC is set up between the POTS port on AG 1 and POTS port on AG 2. Users under these two POTS ports are permanently online and can communicate with each other without dialing a number or any ringing.
Figure 1-101 Networking of a POTS IP SPC

Application Scenarios

A POTS IP SPC is mainly used in the following two scenarios:
  • Special modems are connected to a POTS port and these modems require direct communication without dialing and require online permanently.
  • Two phones are online permanently without dialing. This scenario may be applied to some special dispatching phones.
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Updated: 2019-02-22

Document ID: EDOC1100067358

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