IP Telephony and Phones

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Survavibility with IP Centrex Solution (Call manager hosted at Serv. Provider)

HI,Imagine I have this scenario:CLients&IP-Phones(non Cisco)---Layer2Switch-----Router2821------WANLink----Provider(IP Centrex Solution, Call Control hosted in the cloud service provider).Let's say WAN Link goes down.Question:Can IP phones still make...

news2010a by Participant
  • 1075 Views
  • 8 replies
  • 0 Helpful votes

Presence help

All, Im racking my brain on this one and need some Presence help.  Ive got everything working except two things.  When I into the CUPS client, and go to server health, I have two things that show up as not working:1.  Voicemail:  It says "failed to c...

jjoseph01 by Participant
  • 433 Views
  • 2 replies
  • 0 Helpful votes

CCM - SIP trunk incoming calls

I have configured a SIP trunk in CCM 4.0. outgoing calls are working perfectly. but when dials SIP trunk from outside (incoming calls), it says "Network Busy". can anyone help me how to receive all incoming calls from SIP trunk to IP phone registered...

Resolved! CUCM DLU query...

Hi all,I have a query about CUCM Device unit licenses.As per CIPT documentation, License maanger at Subscriber contacts License server at Publisher after an event like phone registration etc.Is the DLUs availability check done by License server only ...

ashok_boin by Contributor
  • 598 Views
  • 4 replies
  • 0 Helpful votes