I need some help on CVP 8.0 Scheduled Callback Solution-

The CVP 8.0 guide  says the call must arrive on a TDM trunk for this solution to work, I am assuming that is because the survivability.tcl requirement.



Does that mean SIP calls that arrive on a Voice Gateway are not able to participate in the CVP 8.0 scheduled callback?
Does this mean that an incoming voip dialpeer cannot use the survivability.tcl script? only valid for pots dialpeer?


I am asking about this for a new CVP/UCCE/UCM 8.0 deployment.

Call Flow-as I understand it.

We had to get special permission for the Verizon SIP Trunks for this customer.

1. Inbound SIP Trunk to 4900 gateway

2. Gateway to CUPS Proxy Server

3. CVP/ UCCE Interaction

---customer wants to use scheduled callback----during high call volumes---

4. Callback

5. CVP calls customer back

6. CVP / UCCE routes call to CUCM agent

7. CVP Callback and CUCM agent joined at agent


My questions are:

Does the inbound call have to be TDM?

Does survivability.tcl only work on pots dialpeers, not voip (SIP) dialpeers?

Are we sure an inbound SIP trunk with dialpeer 1 answering the call and then dialpeer 2 sending the call to the target (standard voip call), but initiated from a gateway will not work?