Todos los artículos por keithcroxford
I completed the final test of the CCNP track last Friday. This should provide me with more time for content.
MásHere is something a little different. I attempted to make a very basic web based utility. The front page utilizes a JavaScript framework from http://www.prototypejs.org/ by Sam Stephenson to perform from AJAX magic. Next is a very basic PHP script that executes the dig command from the local server. All of the output from the […]
Más==================== FortiOS has two features that can modify the SIP headers and SDP parameters. The first feature is called the “SIP Session Helper”. If you are experiencing one way audio issues disable this feature first, reboot your IP phone then try making another call. If disabling the session helper does not work, disable the SIP […]
MásSIP Training for $20. This is a limited time offer! This video is from the “Become a SIP Expert” series available on Udemy.com. If you are working in a VOIP support role, you need this course. Do you want this course for 50% off? Scroll to the bottom of this article to earn your […]
MásTo disable the SIP ALG on a DLINK DIR-625 follow the below steps. 1. Log into the router. The default user name on this model is “Admin” with a blank password. 2. Click on “Advanced” at the top of the screen. 3. Click on “Firewall Settings” on the left. 4. Scroll down toward the bottom. […]
MásZyxel equipment is often deployed by DSL providers such as Qwest and Century Link. If you are using a VOIP telephone and experiencing call control or audio issues you may need to disable the SIP ALG feature. 1. Telnet into the router from your LAN. 2. Select menu 24. 3. Select menu 8. 4. To […]
MásSonicOS has a feature called SIP Transformations that may cause issues with your VOIP end points. Providers will often ask you to disable this setting if you are experiencing call control or quality issues. To disable SIP Transformations: 1. Log into the web interface on the SonicWall. 2. On the left, find the VOIP tab. […]
MásMost late-model Netgear routers have a SIP ALG built in. This setting is enabled by default. When using a VOIP provider who utilizes an SBC (voice firewall) you may need to disable this setting. Here is how to disable the SIP ALG : 1. Log into the router. 2. On the left side of the screen […]
MásMost ASAs will have the “inspect sip” statement listed in the default policy-map. Some service providers will recommend disabling this feature. 1. Log into the ASA through SSH, telnet or the console. 2. Once authenticated, move into “enable mode” by typing “enable”. ================================ ASA> enable Password: ================================ 3. Enter your password. 4. Type “show run […]
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