Only with the proper emergency equipment can a companion rescue be completed as fast as possible!
Standard emergency equipment:
Transceiver, probe, shovel
Extended emergency equipment:
Mobile phone, First Aid bag, bivy-bag
Start packing the day before your tour and take a look at your equipment to see that it is complete and functional (e.g. batteries).
The time of a companion rescue strongly depends on your emergency equipment!
Rescue time for 1 person with a 1 meter burial depth