Hi, my company is planning deploying 3 CUCM clusters in South America for 10 countries. Cluster in Argentina will support andian countries and Colombia has average 200ms round-trip time back and forth Argentina. There is no QoS tools yet provided in network, they all should be applied before deployment but I don't think we can reduce propagation time since Colombia is linked Miami before data is resent to Argentina.
I would like to know if SCCP would suffer from that time (about 100ms end-to-end delay current measured). I couldn't research all Cisco docs about that but my peers don't think it's a big deal since US reports they run a cluster for India which longer times. Of course SRST would be reset to those longer times if it's needed. Something else will research later...
Re: About delay limits for IP Phones running SCCP.
Thank you very much for the information. Also I will research into iLBC (which I am no aware of yet) and 7942G phones. For South America Cisco and its resellers recommend yet 4.2 or 4.3 as there is not enough trainned people on 6.x. That's OK unless we need a new feature very much. Most of our shops will go on IP Communicator as 70 to 80% people are mobile consultants.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...