MicroNet SP5001C Manuel d'utilisateur télécharger pdf (Page 31)

Legacy PBX

4*FXS

…

PSTN/GSM

@London

Main Office

Branch Office

Internet

CASE 12: VoIP Integration for Main/Branch Office,

Major Upgrade

PSTN/GSM

@Paris

SIP Call Proxy

SP5325

IP PBX SMB

…

ISP/ITSP

SP5325

IP PBX SMB

Branch Office

Extension Call: Existing extensions and

added SIP devices can make calls to each

others via legacy PBX and SP5325.

Extension calling is free and has the same

rules as before.

International Call: SP5325 has SIP trunk to

ISP/ITSP that provides cost-saving route

worldwide for outbound calling. In addition,

connected SP5325 or FXO gateway at the

branch can provide access to remote

PSTN/GSM.

Expansion for Legacy Implementation: SP5325 connects with

legacy PBX via FXS ports and SIP-enabled devices for

expansion of the scale and the functionality (VoIP).

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MicroNet SP5001C Manuel d'utilisateur Page 31