R2511-HP MSR Router Series Voice Configuration Guide(V5)

8
Configuring voice entities
Overview
The voice entity configuration involves:
• POTS voice entity configuration
• VoIP voice entity configuration
According to the position of the caller or callee, a complete telephone-to-telephone connection can be
divided into four call segments, each of which corresponds to a voice entity.
Figure 4 Two types of voice entities in the VoIP voice communication
Figure 4 shows that two types of voice entities are involved in VoIP communication:
• POTS voice entity—This type of voice entity corresponds to the local telephone or PSTN side. POTS
voice entity configuration is required to establish connections between physical voice
subscriber-lines and local telephone devices.
• VoIP voice entity—This type of entity maps telephone numbers with destination addresses.
Contrasted to POTS voice entity, it resides at the IP side. You can configure a VoIP voice entity to use
the SIP or H.323 protocol to make VoIP calls.
Besides the POTS and VoIP voice entities, the device also supports VoFR entity and IVR entity. A VoFR
entity is used to transmit voice data over a frame relay network, and an IVR entity is used to set a
customizable interactive voice response system. For more information about these two types of voice
entities, see "Configuring VoFR" and "Configuring customizable IVR."
Voice entity configuration task list
Task Remarks
Configuring a POTS voice entity Required.
Configuring a VoIP voice entity Required.
Configuring the timeout interval for RTP streams Optional.
Enabling local call identification Optional.