Can I Setup Own Prefix to Use for Calling From Different DIDs to One Number?

Unfortunately, you can't set such a prefix because it is only available for PBX.

Meanwhile, you can just try to set up numbers per SIP account and switch the SIP account whenever you want to switch the caller ID.

Also, CommPeak Dialer supports configuring the outbound routes index under Settings > Outbound Configurations > Manual Dialing Routes. Please check the Manual Dialing Routes page for more details.

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