Our HA goal is to remain operational whether a telco link or a UCM6510 fails to be operational. The UCM6510 does not support two SIP VoIP links nor two E1 PRI links, but it does have ports for one of each.
QUESTION:Can we exploit the one-of-each?
- YES, for failover with one link active and one link passive;
- YES, with both links concurrently active
We currently have two independent UCM6510's, with no HA100, each with its own E1. The telco balances calls across the links. If one UCM6510 powers down, the telco notices the E1 interface is down, and sends all traffic to the remaining E1 attached to the other UCM6510.
However when the failing UCM6510 is powered up but is not responsive (hung),
- The E1 interface is electriclally up,
so the telco doesn't notice the outage,
so the link still gets half the calls,
- which never get answered.
QUESTION: From the Grandstream UCM6510 perspective, can both the E1 PRI and the VoIP WAN inbound links be concurrently active?
QUESTION: Does the HA100 change the answer? From the Grandstream UCM6510 HA100 perspective, can two inbound links be concurrently active. one being an E1 PRI link and the other a WAN SIP VoIP link?
Obviously, we would be transitioning from two independent UCM6510's to an HA100 + 2x UCM6510 configuration. The active UCM6510 would normally be handling all the work.
Single or dual providers: I think that for both inbound links to have the same well known phone number, that both the E1 and the WAN VoIP would have to come from one telco. We would prefer to have two independent providers, but don't think that will be possible.