Cisco SPA 303 Series Manual de instalación y solución de problemas - Página 10

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Phone.com Setup and Troubleshooting Guide

Cisco SPA303 IP Phone

If you have a router that doesn't let you disable SIP ALG, consider

purchasing a different router that either doesn't have SIP ALG, or

lets you disable it. Check out the table in the

Recommendations

If replacing your router isn't a viable option, you could put one

phone in your router's DMZ. Although this will expose your phone

to the open Internet, it eliminates the SIP ALG issue without

requiring you to purchase new hardware.

Network Hardware Recommendations

The table below isn't comprehensive, but provides general

recommendations and notes for selected router manufacturers.

Apple, Cisco, DD-WRT,

Linksys, WatchGuard

XTM

Actiontec, Asus,

Comtrend, D–Link,

Motorola Netopia,

Siemens SpeedStream,

SonicWALL TZ,

SonicWALL NSA, Ubee,

Westell

2Wire, Arris, Belkin,

NetGear, SMC, ZyXEL

Revised: May 28, 2014

section for general guidelines.

Network Hardware

Usually works with Phone.com

without any configuration

changes

Usually requires configuration

changes (i.e., bridging or

disabling SIP ALG)

Incompatible with Phone.com

service

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