09-14-2010 06:48 AM - last edited on 03-25-2019 08:01 PM by ciscomoderator
Has anyone done a 100% SIP implementation with UCM 8.x? If so,
* Did you lose any functionality compared to SCCP on the endpoints?
* Did you lose any functionality on the gateways compared to H323 or MGCP?
* Would you say it was easier/harder/same when it came to design or configuration?
* How did you handle SRST?
* How did you handle media resources (MTP, XCoding, CFB, etc.)?
Any other questions or comments you guys out there have? Fun stuff...
09-14-2010 07:04 AM
From what I know, the SCCP and SIP are not quite the same yet. SIP is still missing a few features compared to SCCP.
For gateways, think h323 and SIP basically the same, other than SIP may give more "options" than H323.
Media resources has nothing to do with SIP. They are still registered either at the gateways (software/hardware) or at the CUCM servers.
SRST still acts the same. http://www.cisco.com/en/US/docs/voice_ip_comm/cusrst/admin/sipsrst/configuration/guide/spsrover.html
09-14-2010 09:55 AM
So far, I haven't found anything missing with SIP on 8.x using newer IP Phones. I'm sure there are some differences, but nothing that stands out so far.
I've been using SIP on the gateways for a while and love it. It's a tiny bit more configuration, but troubleshooting is so much easier.
Fun stuff.
09-14-2010 10:12 AM
Not sure if you've been thru this link but it covers what you get with SCCP what with SIP.
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/8x/endpnts.html#wp1045087
MTP, CFB and XCODERs on ISRs cannot be SIP, they are SCCP handled.
Unified CM communicates with media resources using Skinny Client Control Protocol (SCCP). This messaging is independent of the protocol that might be in use between Unified CM and the communicating entities
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/8x/media.html
HTH
java
If this helps, please rate
www.cisco.com/go/pdihelpdesk
09-14-2010 11:57 AM
Nice call Java (as always). I was taking for granted the poster knew Media Resources were always SCCP.
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