IP Telephony and Phones

Hi, we're going to update CUCM and IMP from ver. 11.5.1.13054-1 to ver. 11.5.1.14900-11 (SU4). Before switching versions, does the order of the installation of the new software on the different systems like publisher and subscribers matter or can we ...

Hello! Tell me, please, what is the difference between revision Cisco ATA 186-I1-A 68-2881-04 B1* from Cisco ATA 186-I1-A 74-3408-03 A0?   68-2881-04 B1* - Made in China, power supply Delta Electronics EADP-10AB A with a thick wire (rev.: A1, input 1...

how forwarded calls are recorded. i am getting a call to my extension and im forwarding that call to another extension. How CDR logs that data and how recording is happening. please help if anyone know about this

Hi,   We are troubleshooting some  DTMF relay issues. The provider does RFC2833 (inband). The dial-peers on the VG facing CUCM and the provider are set to use rtp-nte and the SIP trunk in CUCM is set to use RFC2833. The Cisco traces and CUBE debugs a...

Hi,   We have  an issue where a call drops each time an extension is dialed through the Call Handler. The region for NC uses codec G.729 and the region for NJ uses codec G.711ulaw. There were no hardware resources for MTP, Transcoding and Conferencin...

Hi,Just want to ask if it is possible to implement SX20 Codec that calls other endpoint via Internet (H323). Are there any licenses needed? Thanks.Arvie

We are upgrading CUCM from 11.5 to 12.0.  The 7970 and 7971 phones are deprecated on that release.  So I need to know what is the best/easiest way for me to go about moving those users to a 7975 phone.  I have to do about 40 which isn't a huge number...