We have a head office which hosts the CUCM cluster and the Cisco unity connection.
We have a remote office with 300 users and we are planning to move the remote office to the CUCM solution hosted in the head office.
We have a 3925 gateway in the remote office with a PRI line with DDI.
Because of budget restrictions, we have bought only 50 SRST licenses.
we are going to have 2 device pools for the remote office - dp1 for phones with srst config and dp2 for phones without the srst config.
Business understands that only 50 phones will be up during SRST and the rest 250 will be dead. But, the business wants the calls destined for 250 phones which are unregistered during SRST to be sent to the voicemail server in the head office using the PRI line. Is it possible?
I have configured voicemail (during call-forward busy or unanswered) for phones registered during SRST in the past. But i haven't faced a scenario to handle voice mail for phones that won't register with the SRST gateway. Any experience and pointers will be very helpful.
If calls for those 250 ip phone come in at Head Office, you can click on voicemail radio button on line configuration next to "Forward No Coverage Internal/Externa" and next to "Forward Unregistered Internal/External".
Don't forget the CSS Activation Policy "With configured CSS" and select the right CSS next each option in order to let the call to reach the VM.
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