fix(ios): reject setAudioRoute when no route has the name

CHANGELOG.md

@@ -13,6 +13,7 @@ are not listed here.
 
 ### Fixed
 
+- **iOS:** `setAudioRoute()` rejects when no audio route has the given name. Its promise never settled.
 - **Android:** An outgoing call's connection stays in `STATE_DIALING`, and an incoming call's in `STATE_RINGING`, as Telecom shows them. `setInitialized()`, called after `setDialing()` or `setRinging()`, put the connection back to `STATE_NEW`: `VoiceConnectionService.getConnection(uuid).getState()` returned `STATE_NEW` while the call was dialing or ringing. Samsung devices already skipped it for outgoing calls, where it kept the native UI from showing; every device now does as they did.
 
 ## [4.6.0] - 2026-10-18

docs/api.md

@@ -486,6 +486,7 @@ await RNCallKeep.setAudioRoute(uuid, routeName);
   - AudioRoute.name. 
 
 On Android, the promise is rejected when no call has this `uuid`, and before Android 8 (API 26), which has no API to change a call's audio route.
+On iOS, it is rejected when no audio route has this name.
 
 ### supportConnectionService
 

ios/RNCallKeep/RNCallKeep.m

@@ -569,6 +569,7 @@ - (void)setupWithOptions:(NSDictionary *)options
                 return;
             }
         }
+        reject(@"Failure to set audio route", [NSString stringWithFormat:@"No audio route named %@", inputName], nil);
     }
     @catch ( NSException *e ){
         NSLog(@"[RNCallKeep][setAudioRoute] exception: %@",e);