Blocking Calls at the Gateway by Caller ID

Sometimes administrators have to block calls harassing, scam, or other undesirable calls. In newer versions of CUCM, this can be done in CUCM, or it can be done on an h.323 or SIP gateway. Which should you use? There are … Continue reading

Time of Day Routing in CUCM

Time of Day routing allows for calls to be treated differently based on the time of day and day of week. This allows for things like automatically rerouting calls to a different destination when the company is closed, not allowing … Continue reading

Blocking Calls by Caller ID in CUCM

PBX administrators are sometimes called on to block calls coming from specific numbers, such as telemarketers or other harassing calls. Until Communications Manager 8.x, the only way to block incoming calls based on the calling number was to use an … Continue reading