Cisco 8800 Series Manual page 300
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Also See for 8800 Series:
- Administration manual (406 pages) ,
- User manual (218 pages) ,
- Hardware installation manual (140 pages)
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Audio Codec Parameters
Parameter
DTMF Tx Method
Codec Negotiation
Encryption Method
Cisco IP Phone 8800 Series Multiplatform Phone Administration Guide for Release 11.3(1) and Later
280
Description
The method for transmitting DTMF signals to the far end. The options are:
• AVT—Audio video transport. Sends DTMF as AVT events.
• InBand—Sends DTMF by using the audio path.
• Auto—Uses InBand or AVT based on the outcome of codec negotiation.
• INFO—Uses the SIP INFO method.
• InBand+INFO—Uses both the audio path and the SIP INFO method.
• AVT+INFO—Uses both the AVT and the SIP INFO method.
Perform one of the following:
• In the phone configuration file with XML(cfg.xml), enter a string in this format:
<DTMF_Tx_Method_1_ ua="rw">Auto</DTMF_Tx_Method_1_>
• In the phone web interface, select your preferred transmitting method from the
list.
Default: Auto
When set to Default, the phone responds to an Invite with a 200 OK response
advertising the preferred codec only. When set to List All, the phone responds listing
all the codecs that the phone supports.
Perform one of the following:
• In the phone configuration file with XML(cfg.xml), enter a string in this format:
<Codec_Negotiation_1_ ua="na">Default</Codec_Negotiation_1_>
• In the phone web interface, select the desired option from the list.
Allowed values: Default|List All
Default: Default
Encryption method to be used during secured call. Options are AES 128 and AES 256
GCM
Perform one of the following:
• In the phone configuration file with XML(cfg.xml), enter a string in this format:
<Encryption_Method_1_ ua="na">AES 128</Encryption_Method_1_>
• In the phone web interface, select your preferred encryption method from the list.
Allowed values: AES 128 |AES 256 GCM
Default: AES 128.
Cisco IP Phone Configuration
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Troubleshooting
