Grandstream Networks GXW410X User Manual

Page 9

B. FXS Gateway with GXW410x [No SIP Server required]

Alternatively, the GXW410x gateway can be used without a SIP Server. It can be used in conjunction with
an FXS Gateway (Ex. GXW400x) and calls can still be originated from the IP network and terminated on
the PSTN network and vice versa. All you need to make sure is that both gateways are able to locate
each other (i.e. they should be on the same LAN or have public IP addresses).

GXW400

& GXW410

CENARIO

OLL

 F

REE

ALLING

ETWEEN

OCATIONS

If you setup resembles the one in this diagram, you need to configure the SIP Server field to be the IP
address of the other gateway (i.e. configure the IP address of GXW400x gateway to be the SIP Server for
the GXW410x gateway and vice versa). Please be sure you set SIP Registration to No.

XPECTED

ALL

LOW

: An analog Phone (connected to the GXW400x gateway) picks up and dials the

destination PSTN number. The call gets routed to the GXW410x gateway which dials out the digit string
onto the FXO Lines, thus reaching the destination PSTN endpoint. On the reverse, incoming calls from
the PSTN endpoints connected to the GXW410x gateway will be routed automatically to the analog
endpoints connected to the GXW400x gateway.

Branch A -
Boston, MA
4 employees

Branch B –
Denver, CO
4 employees

Internet

Cloud

GXW-400x

GXW-410x

PSTN

Cloud

FX0

Lines