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Dialogic® DM3 & JCT Media Boards
How to configure pdk_us_mf_io protocol in ESF (Extended Super Frame) mode?
Problem Description:When the user tries to use pdk_us_mf_io as a Global Call protocol and is connected to an ESF T1 line, the call control will not work as expected with the default settings.
Solution Summary:
The reason for the failure is that pdk_us_mf_io defaults to SF (Super Frame) and all bit transition is only enabled on the A and B bits. The C and D bits are not being used. In order to overcome this, C and D bits must be enabled on all parameters that use bit transition in the pdk_us_mf_io.cdp file. It is also recommended to check with the T1 provider that the ABCD bits are used in ESF mode as some T1 providers only use AB bits in ESF mode. If this is the case, then the default cdp file would work.
Technical Discussion:
The parameter below is an example. It basically changes the A and B bits from 11 to 00 in order to represent the idle pattern. The change made is to extend this to the C and D bits by changing them from x to the desired value.
Check the attached files for a full pdk_us_mf_io.cdp file that is changed. Do not use the attached files as your pdk_us_mf_io.cdp file as the file content might change from one release to another. Therefore, it is recommended to modify your existing files with the method outlined above.From:1 = high
All CAS_SIGNAL_TRANS_t CAS_IDLE = 11xx,00xx,50,50,0,80
To:
All CAS_SIGNAL_TRANS_t CAS_IDLE = 1111,0000,50,50,0,80
0 = low
x = ignored
Product List:
D/240JCT-T1
D/480JCT-2T1
DM/V480A-2T1
DM/V960A-4T1
Glossary of Acronyms/Terms:
ESF -- Extended Super Frame
SF -- Super Frame
Cdp -- Country Dependant Parameters
First Published:
03/31/2004
Last Updated:
03/31/2004
Attachments
pdk_us_mf_io.zip
