Hitachi Cable News Vol.358
Back Number  HITACHI Cablenews backnumber
Special Feature: Wireless IP Phones New-Generation Wireless IP Phones Redefine Office Communications

| Overview | Chapter 1-1: Use of IP networks in voice communications |
| Chapter 1-2: Full introduction of IP telephony using IP-PBX or IP Centrex |
| Chapter 1-3: Substantially reduces both call fees and operation/maintenance costs |
| Chapter 2-1: Provides a mobile phone's convenience with an IP phone's cost-effectiveness |
| Chapter 2-2: Achieves connectivity with multiple vendors' SIP servers |
| Chapter 3: Phased introduction of IP telephony infrastructure at low cost |
There has recently been a rapid increase in the number of companies implementing IP phone systems. In addition, wireless IP phones, which made their debuts more recently, are now getting a great deal of attention as tools for innovation in office communications. This issue discusses the latest trends in IP telephony solutions.

| Overview | Chapter 1-1: Use of IP networks in voice communications |
| Chapter 1-2: Full introduction of IP telephony using IP-PBX or IP Centrex |
| Chapter 1-3: Substantially reduces both call fees and operation/maintenance costs |
| Chapter 2-1: Provides a mobile phone's convenience with an IP phone's cost-effectiveness |
| Chapter 2-2: Achieves connectivity with multiple vendors' SIP servers |
| Chapter 3: Phased introduction of IP telephony infrastructure at low cost |

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