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This topic describes how to troubleshoot a fault that occurs when the sequential ringing service or the simultaneous ringing service fails through ONLY service.
Symptom
The PSTN user cannot use the sequential ringing service or the simultaneous ringing service through ONLY service.
Possible Causes
The possible causes are as follows:
ϒ⁄The outgoing prefix is not added to the PSTN user number to be bound.
ϒ⁄The interval for sequential ringing is too long.
ϒ⁄A validity period is set for the binding.
ϒ⁄Services conflict.
Parent Topic: ONLY Service Faults