1. A method of remotely monitoring calls routed to a voice mail system, comprising:
receiving a call from a calling party directed to a directory number associated with a subscriber;
determining whether the call should be forwarded to the voice mail system wherein determining if the call should be forwarded comprises;
querying a first network element to determine whether remote call monitoring services are provisioned on a line associated with the directory number of the subscriber, wherein the first network element comprises at least one list of directory numbers by which to filter the call, and
at the first network element, comparing a directory number of the call to the directory numbers stored in the at least one list of directory numbers to determine whether the remote call monitoring services should be applied to the call;
if the remote call monitoring services are provisioned on the subscriber’s line and should be applied to the call, determining whether the remote call monitoring services are selected for application to incoming calls at a time of receiving the call from the calling party;
if the remote call monitoring services are selected for application to incoming calls at the time of receiving the call from the calling party, causing a second network element to set up a three-way communication between the calling party, the voice mail system, and the subscriber via a remote call monitoring directory number provided by the subscriber from which the subscriber may monitor calls directed to the voice mail system; and
if the remote call monitoring services are not selected for application to incoming calls at the time of receiving the call from the calling party, forwarding the call to the voice mail system;
wherein if the remote call monitoring services are not selected for application to incoming calls at the time of receiving the call from the calling party, forwarding the call to the voice mail system includes;
determining whether a calling party’s identification for the calling party is on an \u201calways monitor\u201d list provided by the subscriber,
if the calling party’s identification is not on the \u201calways monitor\u201d list, forwarding the call to the voice mail system, and
if the calling party’s identification is on the \u201calways monitor\u201d list, causing the second network element to set up a three-way communication between the calling party, the voice mail system, and the subscriber via the remote call monitoring directory number provided by the subscriber from which the subscriber may monitor calls directed to the voice mail system;
wherein the \u201calways monitor\u201d list includes a list calling party identifications associated with calling parties wherein calls from any of the calling party identifications included on the \u201calways monitor\u201d list always invoke remote call monitoring services; and
wherein the calling party identifications include calling party directory numbers, a caller ID presentation indicator status of \u201cprivate,\u201d a caller ID presentation indicator status of \u201cunknown\u201d and a caller ID presentation indicator status of \u201cout-of-area\u201d if any of said calling party directory numbers, caller ID presentation indicator status of \u201cprivate\u201d, caller ID presentation indicator status of \u201cunknown,\u201d or caller ID presentation indicator status of \u201cout-of-area\u201d are designated by the subscriber for inclusion on the \u201calways monitor\u201d list.
2. The method of claim 1, further comprising:
prior to causing a second network element to set up a three-way communication between the calling party, the voice mail system, and the subscriber via a remote call monitoring directory number provided by the subscriber from which the subscriber may monitor calls directed to the voice mail system, determining whether the calling party’s identification is on an \u201calways monitor\u201d list provided by the subscriber;
if the calling party’s identification is on the \u201calways monitor\u201d list, causing the second network element to set up the three-way communication between the calling party, the voice mail system, and the subscriber via the remote call monitoring directory number provided by the subscriber from which the subscriber may monitor calls directed to the voice mail system;
if the calling party’s identification is not on the \u201calways monitor\u201d list, determining whether the calling party’s identification is on a \u201cnever monitor\u201d list; and
if the calling party’s identification is on the \u201cnever monitor\u201d list, forwarding the call to the voice mail system.
3. The method of claim 2,
wherein the \u201cnever monitor\u201d list includes a list calling party identifications associated with calling parties wherein calls from any of the calling party identifications included on the \u201cnever monitor\u201d list never invoke remote call monitoring services; and
wherein the calling party identifications include calling party directory numbers, a caller ID presentation indicator status of \u201cprivate,\u201d a caller ID presentation indicator status of \u201cunknown\u201d and a caller ID presentation indicator status of \u201cout-of-area\u201d if any of said calling party directory numbers, caller ID presentation indicator status of \u201cprivate,\u201d caller ID presentation indicator status of \u201cunknown\u201d or caller ID presentation indicator status of \u201cout-of-area\u201d are designated by the subscriber for inclusion on the \u201cnever monitor\u201d list.
4. The method of claim 1, wherein determining whether the remote call monitoring services are selected for application to incoming calls at a time of receiving the call from the calling party includes comparing a remote call monitoring services schedule to the date and time of receiving the call from the calling party.
5. The method of claim 1, further comprising:
prior to causing a second network element to set up the three-way communication between the calling party, the voice mail system, and the subscriber via the remote call monitoring directory number, determining whether the subscriber’s line is busy;
if the subscriber’s line is busy, comparing the remote call monitoring directory number provided by the subscriber with the directory number associated with the subscriber;
if the remote call monitoring directory number is the same as the directory number associated with the subscriber, routing the call to the voice mail system; and
if the remote call monitoring directory number is not the same as the directory number associated with the subscriber, causing the second network element to set up a three-way communication between the calling party, the voice mail system, and the subscriber via the remote call monitoring directory number provided by the subscriber from which the subscriber may monitor calls directed to the voice mail system.
6. The method of claim 1, wherein the first network element is a Service Control Point (SCP) of an Advanced Intelligent Network (AIN).
7. The method of claim 1, wherein causing the second network element to set up a three-way communication between the calling party, the voice mail system, and the subscriber via the remote call monitoring directory number provided by the subscriber from which the subscriber may monitor calls directed to the voice mail system includes setting up the communication to the remote call monitoring directory number so that the subscriber may monitor calls directed to the voice mail system in \u201clisten-only\u201d mode allowing the subscriber at the remote call monitoring directory number to listen to the communication between the calling party and the voice mail system.
8. The method of claim 1, further comprising:
prior to causing a second network element to set up a three-way communication between the calling party, the voice mail system, and the subscriber via the remote call monitoring directory number, retrieving, at the first network element, the remote call monitoring directory number provided by the subscriber;
retrieving the subscriber’s directory number;
retrieving a voice mail system access number; and
routing from the first network element, the remote call monitoring directory number, the subscriber’s directory number, and the voice mail system access number to the second network element.
9. The method of claim 8, wherein the second network element is a Services Node (SN) of an Advanced Intelligent Network (AIN).
10. The method of claim 1, further comprising interrupting the three-way communication between the calling party, the voice mail system, and the subscriber via the remote call monitoring directory number, and connecting the call from the calling party to the subscriber at the remote call monitoring directory number to allow a two-way communication between the calling party and the subscriber.
11. The method of claim 10, further comprising prior to interrupting the three-way communication between the calling party, the voice mail system, and the subscriber via the remote call monitoring directory number, providing an announcement to the subscriber via the remote call monitoring directory number instructing the subscriber as to how to interrupt the three-way communication in order to accept the call from the calling party via the remote call monitoring directory number.
12. The method of claim 10, wherein connecting the call between the calling party and the subscriber via the remote call monitoring directory number includes:
routing the call from the second network element to the remote call monitoring directory number; and
terminating the communication between the calling party and the voice mail system.
13. The method of claim 1, further comprising prior to causing a second network element to set up a three-way communication between the calling party, the voice mail system, and the subscriber via remote call monitoring directory number, providing the subscriber a caller identification associated with the remote call monitoring services to alert the subscriber that an incoming call is associated with remote call monitoring services.
14. The method of claim 1, further comprising prior to causing a second network element to set up a three-way communication between the calling party, the voice mail system, and the subscriber via the remote call monitoring directory number, providing the subscriber at the remote call monitoring directory number a distinctive ring to alert the subscriber that an incoming call is associated with remote call monitoring services.
15. The method of claim 1, wherein receiving a call from a calling party directed to a directory number associated with a subscriber includes:
receiving the call at a first telephone services provider;
determining whether the call should be forwarded to a voicemail system of the first telephone services provider;
if the call should be forwarded to the voicemail system of the first telephone services provider, forwarding the call to a second telephone services provider for providing remote call monitoring services;
at the second telephone services provider, querying a first network element to determine whether remote call monitoring services are provisioned for the subscriber;
at the first network element, determining whether remote call monitoring services should be applied to the call; and
if remote call monitoring services are provisioned for the subscriber, and should be applied to the call, causing the second network element of the second telephone services provider to set up a three-way communication between the calling party, the voicemail system of the first telephone services provider, and the subscriber via a remote call monitoring directory number provided by the subscriber from which the subscriber may monitor calls directed to the voicemail system of the first telephone services provider.
16. A method of remotely monitoring calls routed to a voice mail system, comprising:
receiving a call from a calling party directed to a directory number associated with a subscriber;
determining whether the call should be forwarded to the voice mail system wherein determining if the call should be forwarded comprises;
querying a first network element to determine whether remote call monitoring services are provisioned on a line associated with the directory number of the subscriber, wherein the first network element comprises at least one list of directory numbers by which to filter the call, and
at the first network element, comparing a directory number of the call to the directory numbers stored in the at least one list of directory numbers to determine whether the remote call monitoring services should be applied to the call;
if the remote call monitoring services are provisioned on the subscriber’s line and should be applied to the call, determining whether the remote call monitoring services are selected for application to incoming calls at a time of receiving the call from the calling party;
if the remote call monitoring services are selected for application to incoming calls at the time of receiving the call from the calling party, causing a second network element to set up a three-way communication between the calling party, the voice mail system, and the subscriber via a remote call monitoring directory number provided by the subscriber from which the subscriber may monitor calls directed to the voice mail system;
if the remote call monitoring services are not selected for application to incoming calls at the time of receiving the call from the calling party, forwarding the call to the voice mail system;
prior to receiving a call from the calling party directed to a directory number associated with a subscriber, contacting a telephone services provider to provision remote call monitoring services on a subscriber’s line wherein contacting the telephone services provider includes contacting the telephone services provider via an Internet-based Web site provided by the telephone services provider;
retrieving a current remote call monitoring services status for the subscriber’s line;
providing the subscriber with remote call monitoring services options;
activating by the subscriber the remote call monitoring services on the subscriber’s line;
providing by the subscriber a remote call monitoring directory number; and
activating a plurality of remote call monitoring filters.
17. The method of claim 16, wherein contacting a telephone service provider includes contacting the telephone services provider telephonically.
18. The method of claim 17, wherein contacting the telephone services provider telephonically includes providing a remote call monitoring services feature code to the telephone services provider.
19. The method of claim 16, wherein activating remote call monitoring filters includes activating remote call monitoring services for all calls directed to the subscriber’s telephone directory number.
20. The method of claim 16, wherein activating remote call monitoring filters includes activating remote call monitoring services only when the subscriber’s line is busy.
21. The method of claim 16 wherein activating remote call monitoring filters includes providing an \u201calways monitor\u201d list that includes telephone directory numbers associated with calling parties, wherein calls from any of the telephone directory numbers included on the \u201calways monitor\u201d list always invoke remote call monitoring services.
22. The method of claim 16, wherein activating remote call monitoring filters includes providing an \u201cnever monitor\u201d list that includes telephone directory numbers associated with calling parties, wherein calls from any of the telephone directory numbers included on the \u201cnever monitor\u201d list never invoke remote call monitoring services.
23. The method of claim 16, wherein activating remote call monitoring filters includes providing a remote call monitoring schedule including days and times during which call monitoring services may be provided for calls forwarded to the voice mail system.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method of fabricating a storage capacitor of a semiconductor memory device, said method comprising:
depositing a first dielectric film and a second dielectric film on a substrate in an area where a memory cell transistor has been formed, and forming a defined first photoresist pattern on an upper part of the second dielectric film;
anisotropically etching the second and first dielectric films by using the first photoresist pattern as an etch mask, to form a first contact hole for exposing an activation region of the transistor;
removing the first photoresist pattern, wet-etching the substrate with an etching solution having a difference in an etch ratio between the first and second dielectric films to form a second contact hole having a negative slope;
depositing a conductive film to form within the second contact hole a contact plug of the storage capacitor having a void therein;
performing an etchback to open an upper part of the void of the contact plug;
covering a structure produced by the preceding steps with a third dielectric film, and then forming a second photoresist pattern for defining a region where a storage capacitor electrode is to be formed;
dry-etching the third dielectric film exposed through the second photoresist pattern; and
removing the second photoresist pattern, and covering a surface of the device with material to form the storage capacitor electrode, to obtain the storage capacitor electrode having a double cylindrical structure.
2. The method of claim 1, wherein said first dielectric film is an oxide film, and said second dielectric film is a nitride film.
3. The method of claim 1, wherein said etching solution is hydrofluoric acid (HF).
4. The method of claim 1, wherein said conductive film that forms the contact plug is a doped polysilicon film.
5. The method of claim 1, further comprising the steps of:
covering the device an oxide film after obtaining the storage capacitor electrode; and
performing an etchback and wet etching, to separate the storage capacitor electrode into unit memory cells.