02-27-2008 07:47 AM - edited 03-15-2019 09:06 AM
Hello,
I have an IP Telephony system running in my office. I have some 7970s, 7960, 7941s, 7912s, 7905s and 7911s. All PSTN calls are loud and clear on all Phone models except on the 7911. Is this a default problem or is there something I've not configured? Please I need help.
Solved! Go to Solution.
02-27-2008 09:59 AM
Hi Peter,
This is what I feared. The 7.2.x release of firmware was one of the Buggiest (is that a real word?) ever. You should upgarde the phone firmware to the one listed below;
Here is the method to load the files.
Cisco IP Unified Phone Model 7911G and 7906G Installation Instructions
Perform the following procedure:
Click the following URL: http://www.cisco.com/cgi-bin/tablebuild.pl/ip-7900ser
Download the file that is listed to your hard drive.
If using the .exe;
When Using Cisco Unified CallManager earlier than Release 5.0
Login to the console of the Cisco Unified CallManager Server where you downloaded the installer.
Note the location where you saved the downloaded file.
Double-click the file to start the installation.
In the Welcome window, click Next.
In the License Agreement window, click Yes.
If a Read Only File Detected window pops up, click Yes.
After the installation finishes, click OK.
Reset all corresponding devices.
cmterm-7911_7906-sccp.8-3-3SR2.exe
Cisco IP Unified Phone Model 7911G and 7906G Alternate Firmware format
The Cisco IP Unified Phone Model 7911G and 7906G Firmware version 8.3(3)SR2 is also supplied in a zip file, as an alternative in case a Cisco Unified CallManager is not available to run the executable installer program. The name of this file is cmterm-7911_7906-sccp.8-3-3SR2.zip.
After unzipping the firmware files, they should be manually copied to the appropriate directory on the TFTP server.
cmterm-7911_7906-sccp.8-3-3SR2.zip
Hope this helps!
Rob
02-27-2008 08:30 AM
Hi Peter,
Hope things are well with you! This is likely a Firmware issue on the 7911's. I have read bugs associated with this exact issue. Let us know what they are running.
Hope this helps!
Rob
02-27-2008 08:52 AM
Hi Rob,
Good to hesr from you again. Am good. what do really mean by "Let us know what they are running"?
02-27-2008 09:04 AM
Hi Peter,
Sorry man, tell us what Phone Firmware the 7911's are using. You can look under the Device Defaults page via ccmadmin to show the Firmware.
Hope this helps!
Rob
02-27-2008 09:25 AM
Hi Rob,
The Phone Firmware is SCCP11.7-2-1-0S
02-27-2008 09:59 AM
Hi Peter,
This is what I feared. The 7.2.x release of firmware was one of the Buggiest (is that a real word?) ever. You should upgarde the phone firmware to the one listed below;
Here is the method to load the files.
Cisco IP Unified Phone Model 7911G and 7906G Installation Instructions
Perform the following procedure:
Click the following URL: http://www.cisco.com/cgi-bin/tablebuild.pl/ip-7900ser
Download the file that is listed to your hard drive.
If using the .exe;
When Using Cisco Unified CallManager earlier than Release 5.0
Login to the console of the Cisco Unified CallManager Server where you downloaded the installer.
Note the location where you saved the downloaded file.
Double-click the file to start the installation.
In the Welcome window, click Next.
In the License Agreement window, click Yes.
If a Read Only File Detected window pops up, click Yes.
After the installation finishes, click OK.
Reset all corresponding devices.
cmterm-7911_7906-sccp.8-3-3SR2.exe
Cisco IP Unified Phone Model 7911G and 7906G Alternate Firmware format
The Cisco IP Unified Phone Model 7911G and 7906G Firmware version 8.3(3)SR2 is also supplied in a zip file, as an alternative in case a Cisco Unified CallManager is not available to run the executable installer program. The name of this file is cmterm-7911_7906-sccp.8-3-3SR2.zip.
After unzipping the firmware files, they should be manually copied to the appropriate directory on the TFTP server.
cmterm-7911_7906-sccp.8-3-3SR2.zip
Hope this helps!
Rob
02-29-2008 01:48 AM
Hi Rob,
Thanks for the help, but I still noticed the the problem still persists onsome 7911 IP Phones. External calls received on some 7911s are clear while others are not clear. what's your view about this.
Also I also noticed that after installing the firnware, my MOH no longer plays. What could be the issue?
02-29-2008 05:04 AM
Hi, do you have T1 or E1 on the GW, if so, can you issue "show controllers T1 (or E1) and post output here ?
I suggest using 8.2.2SR4 as Fw on the 7911, unfortunately as Rob said, there are too many FW versions around and many are very buggy.
03-02-2008 10:58 PM
03-03-2008 02:33 AM
Hello Rob,
Could there be a solution to this issue? Also, can connection plar work on Cisco IP Conference Phone?
03-03-2008 04:17 AM
Hi, please follow the steps in this document:
http://cisco.com/en/US/tech/tk652/tk701/technologies_tech_note09186a0080477a06.shtml
to correctly set FXO impedance. After that, is the volume is still too low, you can adjust with "input gain".
Hope this helps, please rate post if it does!
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