Can SIP transfer dynamically

[saadjalees]

The scenario is PABX is connected to CPE and CPE is connected to MPLS network with 3 links.

First Link=Micrwave (Active)

2nd Link=Fibre (Passive)

3rd Link=Microwave (Passive)

If Active link goes down then how can we dynamically transfer it to passive link,so it will become active. Is it possible through SIP? Please explain ?

[Dennis Mink]

you will need to  implement dynamic routing and apply varying metrics to all your links, so the routing protocol can calculate a preferred path and automatically fail over to a less preferred path as soon as your primary link goes down. SIP has nothing to do with it, so, NO this is not possible through SIP

[saadjalees]

Thanks Dennis for your reply.If PABX is connected to CPE with redundant links ( 1 active and 1 passive) and one link goes down, then how PABX can dynamically transfer it other links.

[Dennis Mink]

what sort of PBX is it?

[saadjalees]

Sorry for asking many questions. I am very new in this field.

Can you please tell me what PABX (IP PABX,Hosted PABX, Virtual PABX) they need for the above scenerio and how.