Do not disturb and do not disturb override supplementary services at Q. See DTR/ECMA-0002 (ECMA-TR/SVC) for service description. See ENV41005 for definition of stage 3. See ENV41004 for definition of Q reference point. To contain PICS proforma.
- Edition:
- 1
- Published:
- 11/01/1994
- Number of Pages:
- 61
- File Size:
- 1 file , 200 KB
- Note:
- This product is unavailable in Russia, Ukraine, Belarus
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