do we need this cme-srst?

[AdamG73545]

Hello,

I believe we had it worked for some time for example when CCUM goes down (pub & sub) we still could make calls through voice gateway with sip trunk. Now it does not work. I wonder if we need this for our 4331 - cme-srst ?

Thank you 

[Jaime Valencia]

Yes, if your CUCM servers are down or unreachable you would need SRST as a backup, whether you need just SRST or CME-as-SRST it's up to you and your needs.

[AdamG73545]

that's what I thought - it worked for a while so I believe it used some sort of trial license or whatever and now it does not (no any related chnages) 

[Maren Mahoney]

Are you asking if the command "cme-srst" is required on the 4331 for srst services?

If the configuration worked before, but is no longer working, what changed in between? New router? New IOS-XE version? New CUCM version? Anything?

Maren

[AdamG73545]

that's what I thought - it worked for a while so I believe it used some sort of trial license or whatever and now it does not (no any related changes) 

[AdamG73545]

License Type: EvalRightToUse

        License State: Active, Not in Use, EULA accepted

            Evaluation total period: 8  weeks 4  days

            Evaluation period left: 8  weeks 0  day

            Period used: 3  days 3  hours

        Lock type: Non Node locked

        Vendor info: <UDI><PID>NOTLOCKED</PID><SN>NOTLOCKED</SN></UDI><T>RTU</T>

        License Addition: Additive

        License Generation version: 0x8200000

        License Count: 0/0  (In-use/Violation)

        License Priority: Low

        Store Index: 5

        Store Name: Built-In License Storage

[Roger Kallberg]

Do you have SRST configured on the router? The license shows as not in use. Can you please share your configuration from the router?

[Nithin Eluvathingal]

As @Roger Kallberg mentioned, could you please share the configuration, router versions details.

[AdamG73545]

I am attaching the output with version, config, and license output. Thank you

[Roger Kallberg · Accepted solution]

Your SRST configuration is incomplete. Under call-manager-fallback add these two lines.

max-ephones <number of phones>
max-dn <number of DNs> dual-line

The last part of the second command is optional, aka dual-line can be omitted if not wanted or needed.

[AdamG73545]

thank you for reply,  should I also hit this command:

license accept end user agreement 

???

[Roger Kallberg]

It would not hurt anything, but your license status shows as accepted, so it should not be needed.

“License State: Active, Not in Use, EULA accepted”

[AdamG73545]

per this Cisco link   https://www.cisco.com/c/en/us/products/collateral/unified-communications/unified-survivable-remote-site-telephony/data-sheet-c78-744126.html

If I need any license should that be L-SRST or SRST14-EP ?

[Roger Kallberg · Accepted solution]

SRST is a RTU license, so technically you don’t need to have any licenses. But to be compliant you should have the appropriate licenses bought. However this is not my strong side, mostly because of it does not interest me one bit. Hopefully someone else can pitch in to help you with this.

[AdamG73545]

Thank you Roger for providing specific details about what is missing and what needs to be done. I see max-ephones is 110 so if we have 130 only 110 will be connected to SR4331 but its still better than none of the phone. I will schedule CCUM down time and test new config.

Thank you all again for your help here.