background image

Phone.com Setup and Troubleshooting Guide 

Cisco SPA301 1-Line IP Phone 
 
 

 
 

7 / 8 

Revised: 30 October 2012 

How should I set up my network? 

Your network will consist of a variety of components, each with its own unique features and 
configurations. Though VoIP devices are designed to work with all types of routers, you may encounter 
special issues with getting your network to work with VoIP properly and certain features of your network 
might need to be modified. 
 
Here are some general rules for configuring your network. Consult the user guide for your network 
component, or contact the manufacturer’s support department if you need specific guidance. 
 

Disable any SIP Application Layer Gateway (ALG) features. 

Routers with SIP ALG enabled can interfere with SIP VoIP packets, preventing them from reaching 
your device, or routing them incorrectly. This means your VoIP device might drop out in the middle 
of a call, not ring on incoming calls, or the wrong device might ring (if you have more than one). 
 
If you have a router where this feature cannot be disabled: 

 

Consider putting your VoIP device in the router’s DMZ. (Consult the user guide for your 
router for specific guidance.) Though this will expose that device to the internet, it 
eliminates the SIP ALG issue for it, while still using your existing network hardware. Most 
consumer routers can only assign one IP address to the DMZ. 

 

Consider purchasing a router where disabling this feature is possible. This way your VoIP 
device can remain behind the protection of the router’s firewall. 

 

Make sure your network is not “double-NAT”ted. 

Network Address Translation (NAT) is what a router does to get traffic to your computer. “Double-
NAT” is an issue where two routers are placed one after another. This can be a common issue if, 
for example, someone adds a router to a network that already has a modem/router combination 
device. 
 
A computer that is behind a double-NAT setup can usually still browse the web, while other 
activities like sending and receiving email might be problematic. More advanced applications—like 
VoIP—are not likely to work at all. 
 
To resolve this issue, you will need to put the modem/router device into “bridged” mode. Most 
modem/router combination devices will allow this. This will disable all routing and NAT functions on 
the modem/router, so only the standalone router will perform these functions. 
 
DSL modem/routers may support “half-bridged” mode, where the modem will take care of the login 
authentication but leaves the NAT functions to the standalone router. If “half-bridged” mode is not 
possible, select “bridged” mode instead, and input the login authentication details into the 
standalone router. Contact your internet service provider if you need specific guidance. 

 
 

 

Содержание Small Business SPA 301

Страница 1: ...Phone com Setup and Troubleshooting Guide Cisco SPA301 1 Line IP Phone 1 8 Revised 30 October 2012 Setup and Troubleshooting Guide Cisco SPA301 1 Line IP Phone ...

Страница 2: ...ou understand the features and potential issues beforehand you should thoroughly review this guide along with the Cisco Quick Start Guide which you can find in the box or on Cisco s website You can also reference Cisco s full User Guide for additional information Expect to spend about 15 20 minutes getting your SPA301 set up and ready to use Once it is set up your phone will work in nearly the sam...

Страница 3: ...inks Your phone has permanently lost its Ethernet connection Once the phone is reconnected it will reboot Green slow blinking Call Forwarding or Do Not Disturb is turned on You will also hear a stutter dial tone when you pick up the phone Message Waiting Indicator MWI and Voicemail When you have a new message waiting in your inbox the status indicator will be solid red and you will hear a fast stu...

Страница 4: ...nient if you suddenly need to step away from your home or office phone but still want to receive your calls to your cell phone 1 Pick up your phone 2 Dial 7 2 to activate 3 You will hear a high pitched dial tone 4 Enter the destination extension or number 5 If your entry is accepted the status indicator will slowly blink green and you will hear a slow stutter tone when you pick up the phone 6 Dial...

Страница 5: ... again if you are still on the call You will hear This caller has been unblocked Or visit the Call Logs section in your Phone com Control Panel then click Call Blocking Settings Call Recording As a Phone com user you have the ability to record incoming calls However please check your current state and the other party s state and Federal laws before using this feature Dial 7 to start recording You ...

Страница 6: ...idth The bandwidth available for your Voice over Internet Protocol VoIP calls can be reduced by file transfers streaming video online gaming or other heavy network activity For best call quality it is recommended you limit heavy network or Internet activity during VoIP calls Why does my phone not ring Make sure that your phone s call forwarding or DND features are disabled If the status indicator ...

Страница 7: ...hile still using your existing network hardware Most consumer routers can only assign one IP address to the DMZ Consider purchasing a router where disabling this feature is possible This way your VoIP device can remain behind the protection of the router s firewall Make sure your network is not double NAT ted Network Address Translation NAT is what a router does to get traffic to your computer Dou...

Страница 8: ...stance you can reach Phone com Customer Care 24 7 Simply send an email to support phone com visit us on the web at https www phone com customer support or call us at 1 800 998 7087 Thank you for reviewing this information 2012 Phone com Inc All rights reserved Cisco the Cisco logo and Cisco images are trademarks of Cisco Systems Inc and or its affiliates in the U S and other countries Third party ...

Отзывы: