Cisco SRP521W-K9-G1 Administration Guide - Page 174

6 174 Configuring Voice Configuring Voice Settings DTMF Tx Mode DTMF Detection Tx Mode is available for SIP information and AVT. Options are: Strict or Normal. The default is Strict for which the following are true: • A DTMF digit requires an extra hold time after detection. • The DTMF level threshold is raised to -20 dBm. The minimum and maximum duration thresholds are: • strict mode for AVT: 70 ms • normal mode for AVT: 40 ms • strict mode for SIP info: 90 ms • normal mode for SIP info: 50 ms FAX Process NSE To use the fax process NSE feature, select yes. Otherwise, select no. The default is yes. Hook Flash Tx Method Select the method for signaling hook flash events: None, AVT, or INFO. None does not signal hook flash events. AVT uses RFC2833 AVT (event = 16). INFO uses SIP INFO with the single line signal=hf in the message body. The MIME type for this message body is taken from the Hook Flash MIME Type setting. The default is None. FAX Disable ECAN If enabled, this feature automatically disables the echo canceller when a fax tone is detected. To use this feature, select yes. Otherwise, select no. The default is no. Release Unused Codec This feature allows the release of codecs not used after codec negotiation on the first call, so that other codecs can be used for the second line. To use this feature, select yes. Otherwise, select no. The default is yes. FAX Enable T38 To enable the use of ITU-T T.38 standard for FAX Relay, select yes. Otherwise select no. The default is yes. Cisco SRP500 Series Services Ready Platforms Administration Guide (SRP520 Models)