code: public OvhOrder telephony_trunks_serviceName_updateSimultaneousChannels_GET(String serviceName, Long quantity) throws IOException {
  		String qPath = "/order/telephony/trunks/{serviceName}/updateSimultaneousChannels";
  		StringBuilder sb = path(qPath, serviceName);
  		query(sb, "quantity", quantity);
  		String resp = exec(qPath, "GET", sb.toString(), null);
  		return convertTo(resp, OvhOrder.class);
  	}
docs: Get prices and contracts information
  
  REST: GET /order/telephony/trunks/{serviceName}/updateSimultaneousChannels
  @param quantity [required] The quantity of total simultaneous channels requested
  @param serviceName [required] Your trunk number