Call forwarding is one of the features of the call coverage in Cisco CUCM. Call Hunting is when CUCM distributes a call on more than one Directory Number (DN), whether consecutively or simultaneously, depending on the algorithm. Hunt Pilot A Hunt Pilot is the entry point for the whole call hunting process. It is hit by a Call. The Hunt Pilot number is a dialable entity and has many similarities with Route Patterns : We can configure Route Filters with Hunt Pilots, Hunt Pilots can Provide Outside Dial Tone , We can set Hunt Pilots with the Urgent Priority flag, They can route or block calls, They can apply Calling and Called Party Transformations. Hunt Lists After hitting the Hunt Pilot, the call is presented by CUCM to the Hunt List. Each Hunt List contains one or more ordered Line Groups. A Hunt List can be pointed by one or more Hunt Pilots. Line Groups Each Line Group contains one or more member (we’ll refer to them as Hunt members, hunt parties or Line Group members). A Line Grou...
Digit Signaling, aka Digit Addressing, is the method by which digits are sent from a dialing endpoint (e.g. phone) to a CUCM server, or by a voice gateway or trunk. There are three known digit signaling methods: En Bloc dialing SIP Dial Rules Digit-by-digit dialing 1. En Bloc digit dialing In the En Bloc digit signaling method, digits are sent as a whole block. Think of it like a brick that you send to UCM. This is the digit addressing method used on Type A Cisco phones, whether the endpoint signaling protocol is SIP or SCCP. En Bloc dialing is the default method used with the famous gateway protocols -MGCP, H323 and SIP- and also on H323 trunks and SIP trunks. Besides, the resulting pattern of a Translation Pattern operation is sent as En bloc to the call control system. 2. SIP Dial Rules It is important to know that all SIP phones support SIP dial rules, whether they are Type A or Type B. SIP dial rules are created on CUCM and downloaded by...
This article is a series of IOS commands that deal with DSPs and PVDMs. To determine the type of PVDM in your router: show inventory Our router is using PVDM3-64. “show voice dsp”, “show voice dsp active” and “show voice dsp voice” “show voice dsp voice” For example, if you have a PVDM3-64 voice card, and you do a “show voice dsp voice”, you’ll get 64 lines, which correspond to 64 DSP voice channels. That’s the maximum allowed with this type of cards. Here is the output of the “show voice dsp voice” command, on a voice gateway: You notice that some channels are “busy” while other are “idle”. We’ve got 64 entries, so all channels of this DSP are used in voice termination. “show voice dsp” and “show voice dsp active” What if we want to see only active DSP voice channels? We can get that information with the command “show voice dsp” or ...
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