Abstract: A telephony device is configured to provide VoIP service at a customer premises and is also configured to provide an external system connected to the telephony device with the ability to seize a telephone line at the customer premises when needed. The telephony device includes an embedded MTA (EMTA), a telephone circuit, and a switch connector configured to connect the external system with the telephony device. When the external system is connected to the telephony device via the switch connector, the switch connector routes telephone signals between the EMTA and the telephone circuit though the external system, and the external system, such as an alarm system, may seize the line when needed. When the external system is not connected, the switch connector connects the EMTA and the telephone circuit.

Abstract: A telephony device is configured to provide VoIP service at a customer premises and is also configured to provide an external system connected to the telephony device with the ability to seize a telephone line at the customer premises when needed. The telephony device includes an embedded MTA (EMTA), a telephone circuit, and a switch connector configured to connect the external system with the telephony device. When the external system is connected to the telephony device via the switch connector, the switch connector routes telephone signals between the EMTA and the telephone circuit though the external system, and the external system, such as an alarm system, may seize the line when needed. When the external system is not connected, the switch connector connects the EMTA and the telephone circuit.

Abstract: A gas jet is positioned above the water nozzle of a system provided for ultrasonically detecting flaws in an article to be inspected. The water nozzle directs a substantially level water jet stream against an upright surface of the article as it is moved transversely of the nozzle. A transducer associated with the water nozzle transmits ultrasonic energy along the water jet stream toward the article, then receives echoes from flaws existing in the article. The gas jet directs toward the upright surface of the article a gas jet stream which is substantially parallel to, and vertically aligned with, the water jet stream. The gas jet stream serves to deflect the water splashing off the surface of the article after impact therewith and prevents the splashing water from descending toward and striking the water jet stream.