# SIP Satellite Office Solution

## Description

When the SIP Satellite Office solution is deployed, remote office IP telephones can access the features and functionality of the MiVoice Business system in the Head Office. The IP phones are deployed remotely as an extension of the MiVoice Business system. Small Satellite Offices (4 to 12 users) have a cost effective solution. Third party gateways provide access to the local PSTN, support for Emergency Services, and analog ports for FAX and On-Premise Extension (ONS) phones. The diagram below illustrates this solution.

The Head Office consists of

- the T1/E1 Dual Framer card or combo card to provide PRI communication with the third party PRI/SIP gateway

- MiVoice Business analog ports providing FAX support

- the MiVoice Business Ethernet port connected to the LAN

- MiNet IP phones connected to the LAN

- Analog phones and FAX machines connected to the MiVoice Business analog ports

- the SIP/ PRI gateway Ethernet port connected with the LAN (T.38 Fax support in the Head Office)

- the SIP/ PRI gateway T1/E1 port connected to the MiVoice Business T1/E1 Framer Port (T.38 Fax support in the Head Office)

The Satellite Office consists of

- LS Foreign Exchange Office ( FXO) ports on the FXO Gateway connecting to the PSTN

- ONS Foreign Exchange Station ( FXS) ports on the FXS Gateway connecting to ONS phones and the office FAX

- the gateway Ethernet port connected to the LAN

- MiNet IP phones connected to the LAN

- ONS phones/FAX connected to the FXS Gateway

The Satellite Office primarily uses MiNet IP Phones. It is recommended that there is a least one analog phone connected to the analog gateway for emergency PSTN access.

The diagram below illustrates the normal operation of MiVoice IP Phones between the Head Office and Satellite Offices.

## Conditions and Feature Interactions

MiVoice Business always communicates with the MiVoice IP Phone at the Satellite Office using MiNet protocol. This provides full telephony functions to the Satellite Office users.

Calls originating from the Satellite Office IP Phones are handled as MiNet calls by the Head Office.

## Resiliency

For information on SIP resiliency, see the Resiliency Guidelines.

## Programming/Configuration

See SIP Satellite Office Programming.

Related Topics

- SIP Satellite Office Applications

- SIP Satellite Office Programming

- SIP Trunking for Service Provider