VoIP Services

There are six VoIP services provided by a CSP equipped with IP Network Interface Series 2 cards.

From the IP Network Interface Series 2 card perspective, the external host is transparent. The host can be a SwitchKit, Softswitch, third party, or other. The six VoIP services provide configuration and call control using API messages. The following is a list of messages used by the host to use the above VoIP services.

Important! The API messages in BOLD have been impacted by the integration of IP Network Interface Series 2 card.

VoIP_ Reports are asynchronous events generated by the CSP. These reports include the following API messages:

VoIP_Configure service allows the host to configure OAM&P related parameters. These configure requests include the following API messages:

VoIP_Query service allows the host to query various statistics and information about the IP Network Interface Series 2 card. These query requests include the following API messages:

VoIP_Allocate service is indirectly initiated by the host by using the following two API messages:

Once a VoIP channel has been established, it becomes like any other channel in the system (T1/E1/DS3),the host can connect it to any other channel in the CSP. All of the connect messages are supported.

Once a VoIP connection is established, the host has the ability to change some of the call attributes on the fly. This is done using the following API message:

De-allocating a VoIP channel is the same as for any other channel in the CSP. The host has the ability to break down the connection using the following API messages:

Voice over Internet Protocol. The delivery of voice information in digital form in discrete packets rather than in the traditional circuit-committed protocols of the public-switched telephone network (PSTN).

Internet Protocol. Part of the TCP/IP family of protocols used to route messages and tracks the addresses of nodes.

See Programmable Protocol Language.

A 32-bit address, used in IP routing, which includes a Network address identifier assigned by a central authority and a Host ID (an end station identifier assigned by a LAN administrator).

Range of channels provided by T1 or E1 transmission service. A physical span is a group of channels taking up a single physical wire. A logical span is a group of channels taking up less than a single logical wire, or carried over more than one physical wire.

The condition of a component at a given instant. The current "context" of a PPL object, such as Idle, Seizing, Answered. In PPL files, a State is represented by a circle.

Outgoing call setup during real-time call processing on a specific channel.

Digital communications link - voice, data, and video at a 1.544 Mbps rate (24 64 Kbps channels)

A digital communications link - voice, data, and video at a 2.048 Mbps rate; 30B/2D or 31B/1D (ISDN); non-North American version of T1.