IP Telephony and Phones

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hello,  I am looking for some information about changing the font size for the 8851 screen.  Looking at the 8851 user manual (https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/8800-series/english/user-guide/P881_BK_C3A802A0_00_cisco-ip-phone...

behemoth2 by Beginner
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  • 2 replies
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I’m sure someone will understand me.I have two 8821’s and currently two access points specifically for the 8821s only. They are connected to a WLAN controller. What I notice is calls will be dropped and not seamless when in the vicinity of a stronger...

JDT69RR by Beginner
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  • 3 replies
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Dear Team, Am facing an issue related to out going call over SIP Line. I have SIP Trunk configured on our CUCM and the ISP Allowed range of SIP Direct line 7720 to 7730. [30 Extension]When we place the call from the extension number which fall in tha...

farispv by Beginner
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  • 17 replies
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Hello, Hopefully  a simple question but I can't find any good documentation on the use of sip-ua timers with in the CUBE config and wondered if anyone had the answer please. With regards to the following timers sip-ua  retry response 3  timers connec...

Lee Marson by Contributor
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  • 6 replies
  • 0 Helpful votes