Cisco SPA122 Installation Manual page 4

InstallatIon GuIde
Cisco SPA122 ATA
3. Under the Network Setup tab, under Basic Setup, select Network Service, then using the pull down menu select the item NAT to make
the SPA122 operate as a basic router, then click the Submit button. Refer to the diagram below.
After changing the SPA122 to router mode, your network administrator can use this same interface to make additional router settings
changes to configure the device to work with your Internet Service Provider (ISP) and broadband modem. Your ISP will provide those
settings and configuration requirements.
4. Your ATA Internet port can be connected directly to a broadband modem and the Cisco SPA122 can be used as an ATA for your phone, and
as a router for your PC or laptop when plugged directly into the Ethernet port of the ATA.
a. To return to the original settings, so your ATA device can be used with a router (rather than connected directly to a broadband modem),
select Bridge from the Networking Service pull-down menu.
If you need detailed instructions on connecting your Cisco ATA as a router to your Internet Service Provider, please refer to the Cisco SPA122
Administrator Guide at http://sims.8x8.com/GetDocument.aspx?docid=710739. Please contact 8x8 Support if you or your IT manager require
access to advanced settings not available under your login.
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