Cerecer C. Sergio
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Latest activity by Cerecer C. Sergio-
Cerecer C. Sergio created a post,
CALLER ID MEXICO
Hello Friends!.. I have a Yeastar S20 PBX and I need to configure the Caller ID.. My provider is TELMEX with analog lines. Telmex uses: "Bellcore FSK" but not appears in configurations.. how do I ...