IP Telephony and Phones

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Dears, I have a cluster of CUCM, I have 2 types of phones 3905 and 8841&8961,  the 3905 phones losses the connection in unspecified intervals with cucm and takes the new ip address everytime but there is no issue with 8841 phones or ot...

Hi Guys Strange problemI have a System Call Handler configured on Unity.I also have Active Recording setup. When a user with recording checked on their device profile tries calling the System Call Handler Pilot then they unable to get through.But if ...

Hello at all,i'm trying to connect a Cisco 8851 3PCC with an Asterisk Cloud Telephonie System. Unfortenatly no way. Configuration of a SIP-Account not possible (always marking wrong SIP T1 and RTP Packet Size, but they are not changed, everything def...

implec by Level 1
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Hello, In Cisco CUCM we can create phone filter list by user? For example: user 1 want accept calls only from number 1111 and 2222, all over calls transer to him assisstant. This accept list individual for each user. Maybe recommend third party servi...

Hi everybody.I have schema with 2 CUCMs connected via SIP trunk. Users may dial with XXX numbers between these CUCMs. However, if SIP trunk failed I need to make seemless failover calls between CUCM1 User A and CUCM2 user B. But this failover should ...