Question about Polycom SoundPoint IP 501 IP Phone
I have only experienced this problem with the Polycom 501 IP phone. I can make calls just fine, and I can recieve calls fine if the caller dials my direct number. However, If a caller dials the main number here and either dials an extention or gets transfered by the auto attendant, then when I pick up, the caller cannot hear me until anywhere from 2-10 seconds has passed. The only things that I have noticed that may be related to the problem are the following: 1) It only happens when a caller goes through the auto attendant. 2) The phone is contacting the dns server many many times in each call. (perhaps the caller cannot hear me until the phone finishes this) I can hear the caller fine but they cannot hear me untill a few seconds have passed. Thanks in advance
You've got an IP issue somewhere in your setup. It sounds like the call is being lost and then the phone is querying the DNS server to find out where it should be looking for the call. Do you have a VOIP server name or it's IP address in the setup? Are you using DHCP or manually assigning IP addresses? If the VOIP server is not on a static IP, I would fix that first. Post back here the answers and we can look at it further.
Posted on Aug 04, 2006
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Posted on Jan 02, 2017
SOURCE: Polcom phones stop ringing
1) After rebooting you can watch your ftp server and see the phone logging in and logging out. Its doing several things (checking the size of the bootrom.ld and sip.ld files and seeing if an update is necessary, etc etc) that I will go over later. It will reboot a couple of times to finish off the update.
2) After the reboots, lets be absolutely sure and lets check the bootrom and SIP versions.
If you did everything right, you should see the latest versions of the bootrom and SIP app that you had placed on your ftp site.
Now check your FTP site. You will notice that there are files being uploaded to your directory with *.log extensions. You guess it, these are just logs that the Phone dumps so you can trouble shoot when need be. If everything was done right, your phone will of seen the new bootrom.ld file and downloaded it, rebooted, and installed it. Next it will download your new sip.ld file and use it.
For More Information and Software updates. See this link.......
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Posted on Jun 28, 2008
Ohh this mean, you did not register this extension on your phone system. Create this extension on your phone system. Be sure that password given on Phonesystem is also configured on phone too.
Posted on Nov 14, 2008
This in it's most basic description means that the phone is unable to register with the SIP server, most likely for lack of internet connectivity or a firewall blocking the packets.
If you've verified connectivity and opened the proper ports and the phone fails to initialize and still getting “URL Call Disabled” or all of the above parameters are correct, update the firmware for the router. This can usually be done within the router configuration. Then reboot in order, the cable modem or DSL, the router or switch, then the phone. This may solve the problem.
If still having the same issue, confirm in the router configuration for settings such as SIP proxy, gateway, or application layer or any configuration setting for SIP or VOIP. If any of these do exist, make sure they are turned off as these may only confuse or adversely affect many implementations.
Posted on Jul 02, 2009
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