Phone Does Not Recognize DTMF Digits or Digits Are Delayed
Problem
The user complains that numbers are missed or delayed when the keypad is used.
Cause
Pressing the keys too quickly can result in missed or delayed digits.
Solution
Keys should not be pressed rapidly.
Troubleshooting Procedures
These procedures can be used to identify and correct problems.
Set Up Remote Phone
Cisco IP Phones that are configured for SSL VPN to ASA using the built-in client in a remote location (for
example, a home office) have a special configuration requirement.
We recommend that you provide the phone with an Alternate TFTP server setting manually. This setting
allows the phone to download the configuration and other files from TFTP. The phone in a remote location
(home office) cannot correctly provide OPTION 150 to the phone using DHCP.
The IP phone can register to the last-known Cisco Unified Communications Manager, but any configuration
updates cannot applied until you configure the manual TFTP server address.
Procedure
Step 1
On the phone, select
Applications
.
Step 2
Navigate to the
IPv4 Settings
window.
Step 3
Scroll to the Alternate TFTP option and set the field to
Yes
.
Step 4
In the TFTP Server 1 field, set the TFTP server address.
Step 5
Save the changes.
Related Topics
Install Cisco Unified IP Phone, on page 29
Cisco Unified IP Phone 8941 and 8945 Administration Guide for Cisco Unified Communications Manager 10.0
(SCCP and SIP)
180
Troubleshooting Procedures
Содержание Unified IP Phone 8941
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