Abstract: A control circuit automatically presents on a display public telephony system telephone numbers using a presentation format that is standard for the public telephony system and private-exchange telephone numbers using a presentation format that includes a non-numeric private exchange modality indicator. By one approach, the non-numeric private exchange modality indicator consists of a single alphabetic character (such as, for example, the alphabetic character “X”) which may, if desired, by presented contiguously with the remainder of the private-exchange telephone number.

Abstract: A system and method for answering a call on a communication device is provided and includes: detecting an incoming call on the communication device, automatically answering the incoming call, and detecting whether an audio signal is received through the microphone of the communication device. Upon not detecting an audio signal, the call is disconnected.

Abstract: A mobile wireless communications device includes a display, at least one input device, and a processor. The processor is connected to the display and at least one input device, and is configured to display on the display video from at least one video media file, the at least one video media file also having closed captions associated with the video. The processor is further configured to display on the display closed captions with a position thereof being selectable responsive to the at least one input device.

Abstract: An individual tetrahydrocannabinol isomer of interest is separated from a mixture containing two or more such isomers, by treating the mixture with an isocyanate or isothiocyanate of formula I: R—(CH2)n—N?C?X??(I) where R represents an aromatic ring optionally substituted with one or more electron withdrawing groups, n=0 or 1 and X is oxygen or sulphur; so as to produce a crystallizable THC carbamate of formula II: wherein X and R are as defined above, R? is a C3-C10 alkyl group and the dotted lines indicate optional unsaturation including aromatic, separating the compound of formula II from solution in isolation of other THC derivatives, and hydrolyzing the compound of formula II to form the individual tetrahydrocannabinol isomer of interest.

Abstract: Dronabinol, the tetrahydrocannabinol compound which comprises the active constituent of marijuana and is pharmaceutically useful as an antiemetic, is prepared by a process involving reaction of cis-menth-1-enc-3,8-diol with olivetol to form 1,3-dihydroxy-2-[(1R,6R)-6-(2-hydroxyprop-2-yl)-3-methylcyclohex-2-en-1-yl]-5-pentylbenzene; and cyclizing the 1,3-dihydroxy-2-[(1R,6R)-6-(2-hydroxyprop-2-yl)-3-methylcyclohex-2-en-1-yl]-5-pentylbenzene so formed to obtain dronabinol. A novel synthesis of cis-menth-1-ene-3,8-diolis also provided.