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 have an IP issues. You need to see first if you call another phone within your group. Then, go to menu, setting, advanced, password 456, admin settings, networking configuration to see if you have different IP address from the rest of the phone and check the VLAN
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.
SOURCE: Polcom phones stop ringing
Dear Sir/Madam,
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.......
http://www.voip-info.org/wiki/view/Asterisk%40Home+Handbook+Wiki+Chapter+7#7224HowtouseProvisioningCentralBootServe
Thanks
Good Luck
"Don't forget to rate the Solution"
SOURCE: just installing polycom 501 phones with nextiva
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.
SOURCE: Polycom Soundpoint IP 501 - URL call is disabled
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.
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I have a VoIP server name in the setup. (Some of the phones may be using an IP address, but they are not all in this building. If having a sever name would cause the problem then I can check them all--I don't see why it would though because the name just leads to the IP address). The phones are set up on DHCP. The phones work fine though until someone goes through the auto attendant so would IP addressing, DHCP or static, have anything to do with it. I am about to go but tomorrow I will change one to static and try some stuff out with it to see if it helps--thanks
I changed 3 phones to static IPs and it seems to have fixed the problem on 1 of the 3
caller
Had the same problem. Switching to a static IP fixed it.
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