No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


Voice Feature Guide 01

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).


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.
Updated: 2019-02-22

Document ID: EDOC1100067358

Views: 16126

Downloads: 165

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Previous Next