McDewey

Image 4 - Inbound and Outbound dial-peers for a POTS to POTS call Voice Dial-Peer Types POTS Plain Old Telephony Service dial-peers are matched for analog connections such as Analog FXS, FXO, ISDN T1 / E1s, E1 R2, and Ear and Mouth (E&M) connections. These send or receive a call to / from a physical voice-port on the gateway. VOIP Voice Over IP dial-peers are used to mainly control H323 and SIP connections to and from the gateway. These dial-peers send and receive signaling from both IPv4 and IPv6 addresses as well as Fully Qualified Domain Names (FQDN) using Domain Name System (DNS).

VoIP dial-peers can also be used for Voice over Frame Relay (VoFR), Voice over ATM (VoATM), Voice over High-Level Data Link Control (VoHDLC) and Registration, Admission, and Status (RAS) signaling and session targets for these dial-peers can also include settlements and ENUM values. Note: Some of these types of configurations are older technologies not seen in newer networks and with Cisco IOS XE some are no longer supported. As a result they are not be covered in this document.