Hi guys, i need your help regarding our issue with our IP phones and SRST. Some phones (not all) keeps going to SRST mode even if the gateway router is not loosing connectivity to the CCM. We already changed the phone
ccm-manager fallback-mgcp ccm-manager redundant-host 10.224.16.6 ccm-manager mgcp no ccm-manager fax protocol cisco ccm-manager music-on-hold ccm-manager config server 10.224.16.3 10.224.16.8 ccm-manager config ! mgcp mgcp call-agent 10.224.16.7 2427 service-type mgcp version 0.1 mgcp dtmf-relay voip codec all mode out-of-band mgcp rtp unreachable timeout 1000 action notify mgcp modem passthrough voip mode nse mgcp package-capability rtp-package mgcp package-capability sst-package mgcp package-capability pre-package no mgcp package-capability res-package no mgcp package-capability fxr-package no mgcp timer receive-rtcp mgcp sdp simple no mgcp fax t38 ecm mgcp fax t38 inhibit mgcp rtp payload-type g726r16 static mgcp bind control source-interface GigabitEthernet0/0 mgcp bind media source-interface GigabitEthernet0/0 ! mgcp profile default
If the phones are registering with SRST, then that means the phones are loosing connectivity to the CUCM. This connection is TCP between the phone and CUCM. You need to figure out what is happening to those TCP connections. Make sure you have a correct QoS configuration in your network to ensure the phone signaling is prioritized correctly.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
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