Ask us any telephone related question and if someone on our staff knows the answer, we'll be glad to email you the answer and add the question to our FAQ.

You'll get the information you need and at the same time help us publish more information that may benefit others.

Just send your question to sales@TelephoneCentral.com.

From any display telephone:

1.    With the handset on-hook (hung up) press TRSF and dial 200.

the display will show ENABLE CUS PROG PASSCODE

2.    Dial the 4 digit passcode

the display will show ENABLE CUS PROG DISABLE

3.    Dial 1 to enable

the display will show ENABLE CUS PROG ENABLE

4.    Press TRSF

the display will go back to the normal display

5.    Press TRSF and dial 505

6.    Enter the new date and time

W = day of the week (0 is Sunday, 1 is Monday, etc.)
MM = month (01 is January, 02 is Februray, etc.)
DD = day of the month (01 is the 1st, 02 is the second, etc.)
YY = year (02 is 2002, 03 is 2003, etc.)
HH = hours in military time (12 is noon, 13 is 1 p.m., etc.)
MM = minutes (00-59)

7.    Press TRSF to store and exit.

The display should return to normal.

The following procedure will allow you to determine the software version on any digital Samsung telephone system including:

• OfficeServ 7400
• OfficeServ 7200
• OfficeServ 7100
• OfficeServ 500 and the iDCS 500
• OfficeServ 100 and the iDCS 100
• iDCS 16 and the DCS 616
• DCS
• DCS 50si
• DCS Compact

Procedure

1. Go to any display phone
2. Press TRANS
3. Dial 800 (this is MMC 800, and how you enter programming mode)
4. Dial the technician password. The default is 4321.
5. Press the Volume UP key. (This enables programming)
6. Press TRANS (this exits MMC 800)
7. Press TRANS
8. Dial 727 (this is MMC 727 to find out the software level)
9. The display should say MCP, then the date, then the software level
10. Press TRANS (this exits MMC 727)

As of November 13, 2008

The OfficeServ 100 and 500 are v2.75b, released April 4, 2008

The OfficeServ 7100, 7200 are v4.22

See the answer here.

See the answer here.

For legal reasons, Samsung requires the following procedure be followed to reset the technician password to the factory default. The password can be reset to the default value without defaulting the whole system. To do this Samsung has to have:

1. On the customer's letterhead we need a letter stating that Telephone Central is the authorized vendor they wish to have working on their equipment.
2. On Telephone Central's letterhead we need a letter stating that the technician doing the password default is a technician who works for your company.
3. Fax both of these documents to 972-792-2100, and have the technician call Samsung technical support, and we can default the password on this switch in about 5 minutes by entering a series of commands on a telephone.

For copper twisted pair cables, see the Color Code for Twisted Pair Cables page.

For fiber optic cables, see the Color Code for Fiber Optic Cables page.

First you will need hardware that will run the latest release 2 software. The MCP, SCP, and LCP cards will need to be upgraded to the MCP2, SCP2, and LCP2 cards respectively.

You will also need to purchase the appropriate version of the release 2 software.

If you have a modem on the system, a Telephone Central technician can copy the configuration database, convert it, and upload it to the new MCP2 card. We will then send you the new MCP2 card ready to be replaced.

If you do not have a modem, you can connect a PC to the system and download the proper database files which we will then have you send to us. A Telephone Central technician will then convert the database and upload it to the new MCP2 card.

Please call for details.

If you have the flash version, you would remove the flash card, insert it into a PC flash card reader, download files to the PC, insert the flash card from SVMi-8E, and upload the files to new flash.

To do this with the HDD version requires connecting a special zip drive to the parallel port on the SVMi-8, and then performing the upload+download as before.

Telephone Central can provide the necessary components, tools, and labor to make this as painless as possible. Please call for details.

Sure, There are 2 kinds of ISDN: BRI and PRI.  ISDN is a digital telephone service that uses out of band signalling, e.g., touch tones don't travel down the audio path, rather they are packetized and sent via the D channel.  Both kinds have B and D channels.  B stands for "bearer" and D for "data". B channels are used for voice, video, or data between the endpoints and the D channel is used for signalling and control.

BRI is Basic Rate Interface. It runs on 2 wires like your phone at home and provides 2B+D. B channels are 64K and the D channel is 16K. It is not available in many areas and can be troublesome. Many DSL protocols are based on the line coding developed for BRI.

PRI is Primary Rate Interface. It uses a T1 line and uses the last of the 24 channels for the signalling.  23B+D, both the B and D channels are 64K. PRI B channels can be used for voice, data, or video.

PRI has 2 uses: public network services and private networking.

Benefits of PRI for public network services:

1. channel assignment is dynamic, i.e., any channel can be used for any phone number, incoming call, outgoing call, video, or data.
2. even though one of the T1 channels is used up for signalling, the PRI can usually handle greater call volume.  Using traditional POTS or T1 service, when you make a call somewhere and you hear ringing or a busy signal, you actually have a circuit open all the way to the far end, tying up one of your lines. With PRI, the ringing you hear is actually from your PBX, the circuit isn't opened until the far end actually answers the call.
3. PRI offers better quality than analog trunks
4. PRI offers caller ID
5. PRI calls are setup much faster than analog calls.
6. Less cards are required in the PBX, e.g., you can do away with the analog DID cards and 1 PRI card can replace 3 or more analog line cards.
7. PRI channels can be used for video, data, or leased line backup. They can also support incoming modem connections up to 56K (assuming you also have a digital link from the PBX to the remote access server).
8. long distance rates are generally less
9. PRI enables the Coral to have Flexicall and Freedom (cell phone integration).

Here's some info about private networking on the Tadiran Coral with QSIG on PRI (the same features are available using QSIG over IP with the UGW card). QSIG is short for Q Signalling. It is an extension of the ISDN Q protocols such as Q.921 and Q.931 which allows the Coral to use the D channel for signalling for interPBX features. This would provide greater transparency between your systems as compared to the T1 you're using today.

ISDN (Integrated Services Digital Network) provides a higher level of interconnectivity and data transport between telephone systems than available in the past. All Coral systems offer in their standard feature package full ISDN capabilities that enable simultaneous voice, data and video transmissions over public or private networks. With ISDN, Coral users can develop advanced applications for WAN support, video conferencing and Internet access.

When two Coral Systems are linked using an ISDN advanced network, the systems can be programmed to provide a high degree of networking transparency and functionality. Coral's ISDNet is the ideal platform for networks that are designed for efficiency, convenience and global operations. ISDNet is truly flexible, supporting various network architectures, numbering plans and wide bandwidths. What's more, QSIG networking is available throughout the entire platform - from a small 20-port Coral SL system, 348 port Coral II, to a large 6,000-port Coral III system. ISDNet enables many standard QSIG features as well as unique proprietary features, such as:

• Automatic number / name identification and display
• Automatic route selection
• Call forwarding, transfer, recall and rerouting
• Centralized voice mail, attendant, message center and call log (SMDR)
• Data and video support
• Intelligent speed dial libraries
• Uniform and non-uniform dial plans
• Paging
• Page Q (held call can be answered from any location)
• Remote message lamp control
• Remote office desktop dialing

Here's an overview of how TAPI works. It's like a print driver in windows. The operating system talks to each program and each TAPI provider (phone system) in the same way that MS Excel interacts with Windows instead of directly to your HP printer.

So you need a software program like OfficeServ Call or MS Office or OfficeServ TSP + YourProgram to generate the call. The instruction for the call goes to Windows which then passes it via ethernet to the OfficeServ Link gateway. The OS Link acts like a logical multiplexer that allows multiple PC applications to access the phone system for TAPI input and output.

To intercept calls, you would need to take the TAPI status of the call from the phone system, apply logic, and send a divert command to the phone system. I'm pretty sure you can do this. That is unless you want to actually open an audio path to make the logical decision in which case you are going to need an IVR type system to process the audio. Samsung is coming out with their new IVR server soon.

OfficeServ Open TSP is a software developers toolkit which is basically the guts of OfficeServ Call with source code so you can learn the API calls (or something along that line). You can download that and the other apps at http://www.telephonecentral.com/custom.aspx?id=42.