chompak
2011-08-04, 01:04 AM
Hi Experts,
This reg. unsuccessful call attempt......
when first 2G to 2G MO call made, call drops after some time . In MSC trace, it is found that there is no response from BSS for 'assignment request (TCH)' sent by MSC. As a result, MSC gives 'disconnect' message to BSC. This occurance is 2 out of 15 calls attempted.
Vendor: Nortel 2G BTS,BSC & MSC.
Another issue: SCCP failures are more in BSC (>2%).
Any idea which parameters to check...?
Chompak
This reg. unsuccessful call attempt......
when first 2G to 2G MO call made, call drops after some time . In MSC trace, it is found that there is no response from BSS for 'assignment request (TCH)' sent by MSC. As a result, MSC gives 'disconnect' message to BSC. This occurance is 2 out of 15 calls attempted.
Vendor: Nortel 2G BTS,BSC & MSC.
Another issue: SCCP failures are more in BSC (>2%).
Any idea which parameters to check...?
Chompak