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Automated phone calls?
Ozeki Phone System XE VoIP PBX software is an advanced PBX built for automated voice calls and 2 way SMS messaging. It has outstanding APIs for software developers. It can be used for:

Phone calls from SQL
Phone calls from HTTP
Voice and SMS applications

Callcenter developers
If you are working on telephone solutions, please check out the Ozeki VoIP SIP SDK.
It can be used to create VoIP client and server software.

Contact Us!
If you wish to get further information, do not hesitate to contact us!

E-mail: info@ozekisms.com

If you have a technical question, please submit a support request on-line.

Connection types

Ozeki SMS Gateway can be used to send and receive SMS messages. The messages can be transferred to or received from the mobile network in two ways. You can setup a wireless connection (Figure 1) or an IP SMS connection (Figure 2). Both connection types have advantages and disadvantages.

Wireless connections

A wireless connection can be used to send/receive SMS messages if you attach a GSM Modem (or GSM phone) to your PC with a phone to PC data cable. The GSM Modem has a SIM card, that makes it possible to attach to the GSM network. The major advantage to this connection is that it is easy to setup. You can purchase a SIM card and a GSM modem simply and get the system up quickly. To operate this connection the costs are low. You can purchase a prepaid SIM which means you will not have a regular monthly fee. The drawback to this connection type is that it is relatively slow. You can transmit/receive about 10 messages per minute with this connection type. (You can increase this capacity by using more than one GSM modems.) If you want to create an SMS service that will not send/receive a very large number of messages this is an ideal option.

Wireless SMS connection
Figure 1 - Wireless SMS connection

IP SMS connections

Another option is to connect your system directly to the short message service center of a GSM service provider over the Internet. In this case you have a significantly better bandwidth (max. 10 000 SMS/ minute), but you usually have to pay a large monthly fee and it takes a lot of time and is hard to sign a contract with a service provider. IP SMS connections use IP SMS protocols: SMPP or CIMD2 or UCP/EMI. Ozeki SMS products have an excellent implementation of these protocols.

IP SMS connection - sending SMS via Internet
Figure 2 - IP SMS connection

Recommendations

If you want to build a system, we recommend you to start with a wireless GSM Modem connection and if the capacity demands increases you can switch to IP SMS.

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