Use case when the call contains two `Geolocation` headers.
Example
```
Geolocation: <http://example.org/held-link>
Geolocation: <cid:[email protected]>
```
Technically such a call contains Geolocacation by_value and does not require
deference first Geolocation header by_reference.
>From my point of view.
When used `emergencyRouting` routing need to prefer Geolocation by_value. This
alow delivered call with minimal delays but maybe with low accuracy.
When used `emergencyDispatch` routing needs to prefer Geolocation by_reference.
This alow send HELD request to a mobile carrier and get latest mobile device
location.
Technically on Kamailio maybe used `emergencyRouting` and on `PSAP` used
`emergencyDispatch`.
So as idea, in lost request check the number of present Geolocation headers, if
present more than one header:
1. and used `emergencyRouting` then try search `by_value` Geolocation;
2. and used `emergencyDispatch` then try to search and dereference
`by_reference` Geolocation.
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