You can absolutely upgrade to the inactive partition...I just upgraded 10.5 to 12.0 in this manner. You will want to shut down and adjust virtual resources before the switch version, but you can stage the upgrade without interuption.
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When you say the call could not be routed, what is happening? Busy? Error message? Dead air?
I see you are also using time schedules....did you check those to make sure they aren't causing an issue?
Also, you can check RTMT (assuming CUCM v10+) for in the Real Time Voice and Data section and search for the call at that date/time. See if the redirected call is even leaving CUCM.
Also, do all RDPs fail or just this one? There is a check box on your PSTN facing trunk in the outbound calls section about redirecting diversion headers ---- I'm making a ton of assumptions about your env, but that probably should be checked. However, if it is not and you want to test by checking it just know it will reset the trunk and disrupt any call setup in progress.
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Oh wow! I've been doing with much smaller numbers (500-2000 devices)
Without doing the same thing above, but splitting into smaller exports (Create a phone file format with all phone/line fields)
BAT - Export Phones / Specific Details (export by Device pool, DN, or something to break into manageable chunks)
Use the phone file format created....rinse and repeat.
But then you are manipulating several files and that just sounds like a nightmare!
I'm not sure there is a clean/easy/quick and dirty way possible without a 3rd party provisioning/migration tool...and even those take time to set up to do exactly what you want
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Change 1 or 2 phones manually
1.BAT export all phones / all details (depending on how many phones you have this can take a while)
2. Open in excel, sort and delete all but the rows except the ones you want to change (I'm assuming you can sort by DP
3. Start changing necessary attributes eg: CSS, REG, LOC, DP, DN, PT, etc..... (use the 1 or 2 you changed manually as a guide) 4. save the file as a csv
IF YOU HAVE A BUNCH OF SPEED DIALS AND BLFS ---> Delete them and save a 2nd copy of the CSV
5. upload file(s) to CUCM / target phones - insert all details (do the one without the speed dials and BLFs first)
6. BAT phones - insert all details / select your file
7. Check the box to overwrite existing data
If you're lucky, you won't have any errors. Most likely you will have a couple things to correct....users that no longer exist, fat fingered CSS, etc....look at the log and correct any errors. Once you have the phones in, run the BAT file with the speed dials and BLFs (BAT - insert phones - all details - overwrite) to restore speed dials. It is a tedious process, but it is doable. I've migrated a few customers from type 4 dial plans to +E164 and it is a very similar process.
Good luck! Let me know if you need further explanation.
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Not sure if my table is going to show up, but 11 to 12 is a Direct Standard Upgrade. So you are good to install to the inactive partition. Remember you will need 25GB (at least) free on the common partition.
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11.x
12.0(1)
PCD Migration
PCD Upgrade (Direct Standard Upgrade)
Cisco Unified OS Admin (Direct Standard Upgrade)
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/upgrade/12_0_1/cucm_b_upgrade-and-migration-guide-1201/cucm_b_upgrade-and-migration-guide-120_chapter_0101.html
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I'm not sure this can be accomplished with SLRG because Company A and Company B will ultimately point to the same SIP trunk....so no real distinction coming into your VG.
What about 2 route patterns:
9.[2-9]xx[2-9]xxxxxx in companyA-pt associated device is the VG; strip preDot; prefix 444 9.[2-9]xx[2-9]xxxxxx in companyB-pt associated device is the VG; strip preDot; prefix 555
Now you have different digits coming into the VG and you should be able to use trunk groups and translation profiles to further manipulate the digits and get them sent out the right ports.
Disclamer: I haven't tested this...just thinking through in my head
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This depends on if it is a standard upgrade or a refresh upgrade.
What version are you upgrading from/to?
For example 9.x to 11.5.x is RU ---- can't install to inactive partition
10.5.1 to 11.5/12 is SU/LU ( I forget the terms) but can be installed to inactive partition and switch version in a maintenance window.
If you are unsure if it is RU, search for CUCM <version> upgrade guide and you'll find the upgrade type based on your current version!
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From your CUBE, can you run the command
show dialplan number 0011919930155862
or show dialplan number 0011919930155862 t
and let us know the results
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