text: #pragma once
  
  #include <string>
  
  #include "source/common/singleton/const_singleton.h"
  
  namespace Envoy {
  namespace Extensions {
  namespace NetworkFilters {
  namespace SipProxy {
  namespace SipFilters {
  
  /**
   * Well-known http filter names.
   * NOTE: New filters should use the well known name: envoy.filters.sip.name.
   */
  class SipFilterNameValues {
  public:
    // Router filter
    const std::string ROUTER = "envoy.filters.sip.router";
  };
  
  using SipFilterNames = ConstSingleton<SipFilterNameValues>;
  
  } // namespace SipFilters
  
  const std::string SipProxy = "envoy.filters.network.sip_proxy";
  
  } // namespace SipProxy
  } // namespace NetworkFilters
  } // namespace Extensions
  } // namespace Envoy
  