The default dial peer and its call parameters cannot be modified. This dial peer may be a POTS dial peer or a voice-network dial peer, and is always referred to as dial peer 0 or pid:0.
Dial peer 0 (pid:0) has a default configuration that cannot be changed. The default dial peer cannot negotiate non-default capabilities, services, and applications such as:
- Non-default Voice-Network capabilities, such as DTMF Relay and VAD
- Direct Inward Dial (DID)
- (Tool Command Language) TCL Applications
The default dial peer for inbound VoIP peers has the following default configuration:
- It supports any codec
- It has VAD enabled
- It provides no Resource Reservation Protocol (RSVP) support
- It provides fax-rate voice support
The default dial peer for inbound POTS peers has the following default configuration:
- It does not support Interactive Voice Response (IVR) applications
