Chapter 11: Board Configuration

Configuring Virtual Boards SIPSP and H323SP

A VoIP connection typically consists of two parts:

Signal Channel—responsible for setting up and tearing down a call using protocol. For example, SIP protocol is used in AltiWare 5.1 to build a signal channel between the server and the IP phone.

Media Path—responsible for encoding, transmitting, and decoding voice for both parties. For example, when an IP phone user makes a call to an outside number, the voice will be encoded at the IP phone, transmitted to the system via the IP network, decoded by the VoIP codec, and passed to a trunk port so that the external party will hear the voice.

The purpose of virtual boards SIPSP and H323SP is to build signal channels for different connection types, IP extensions, SIP Tie Trunks, SIP Trunking from ITSP, and H323 Tie Trunks. Each channel will have its channel ID similar to channels on a Triton extension or trunk board. When an IP phone registers to the system, a channel ID will be assigned to the IP extension. However, these channels are only responsible for processing protocol and call control signals. They require a media path from a VoIP board or from the IP phone to establish a voice steam so that both sides can hear.

Notes:

Make sure you have enough VoIP resource boards.

The more signal channels, the more system memory and CPU power required. Proper planning is essential.

Changing the number of signal channels requires that you stop and restart the switching and gateway services.

SIP Trunking Channel requires a license to activate.

Configuring the SIPSP Board

Double-clicking a SIPSP board in Boards view and then clicking the Board Configuration button opens this dialog box:

If you change the number of SIP extension or tie trunk channels, you must stop and restart the switching and gateway services.

Figure 17. SIP Signaling Channel Configuration dialog box

142AltiWare ACM 5.1 Administration Manual

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AltiGen comm ACM 5.1 manual Configuring Virtual Boards Sipsp and H323SP, Configuring the Sipsp Board