| Summary: | ASTERISK-08049: Signalling levels - TBR21 :- the difference level of high frequency group and low frequency shall be 1 .. | ||
| Reporter: | hashish (hashterix) | Labels: | |
| Date Opened: | 2006-11-02 07:48:12.000-0600 | Date Closed: | 2006-11-28 14:02:01.000-0600 |
| Priority: | Trivial | Regression? | No |
| Status: | Closed/Complete | Components: | Channels/chan_zap |
| Versions: | Frequency of Occurrence | ||
| Related Issues: | |||
| Environment: | Attachments: | ||
| Description: | As per the TBR21 Manuals, The level of the tone in the high frequency group shall be 1 to 4 dB higher than the level of the tone in the low frequency group. We have a detailed test of DTMF produced by Asterisk on a Digium Card tdm400p for a Goverment Agency approval, we noticed that the Difference between Higher and Lower Frequency group is less than one. I have changed the country code etc .. But still showing the same. Where should be look into this issue? How can we accoplish this? | ||
| Comments: | By: Serge Vecher (serge-v) 2006-11-08 16:03:17.000-0600 hashterix: I think this sort of problem is best handled through Digium Technical support directly at support@digium.com. By: chankm (chankm) 2006-11-10 08:42:51.000-0600 Hi hashterix, You might want to refer to ../zaptel/gendigit.c. In gendigit.c, there are settings for LEVEL_DTMF_LOW and LEVEL_DTMF_HIGH. The default value is set to -10 for both levels. This would explain why you are getting a difference of less than 1. You might want to try changing the levels for e.g. for LEVEL_DTMF_HIGH = -8. By: Matthew Fredrickson (mattf) 2006-11-28 14:02:01.000-0600 Should be handled through tech support | ||