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COL - lit if there are network collisions

NETWORK - connects the WLAN IP Telephony Manager 2245 to the wired Ethernet LAN

ERROR LED - lit when the system has detected an error

Status LED - indicate system error messages and status

1 - heartbeat

2 - active calls

3, 4, 5 - currently unused

PWR - connects to the AC adapter supplying power to the system

Warning: Use only the provided Class II AC adapter with 24 volt (V) DC, 1 amp

(A) output.

Functional description

The WLAN IP Telephony Manager 2245 provides the following services to the WLAN Handsets 2210/2211:

It acts as a proxy for every WLAN handset; that is, all Unified Networks IP Stimulus (UNIStim) signaling and RTP media to and from the wireless handset pass through the WLAN IP Telephony Manager 2245. Except for the initial DHCP and TFTP sessions, the wireless handsets only communicate with the WLAN IP Telephony Manager 2245.

Each WLAN IP Telephony Manager 2245 is configured with an IP address with which all of the wireless handsets communicate. In addition, each WLAN IP Telephony Manager 2245 is configured with a pool of IP addresses. When a wireless handset registers with a WLAN IP Telephony Manager 2245, the wireless handset is assigned one of the IP addresses from the pool. All communication between this WLAN IP Telephony Manager 2245 and other devices (BCM, IP Phones, gateways, and other wireless handsets) is always done through its pool of IP addresses. In this sense, the WLAN IP Telephony Manager 2245 acts as a Network Address Translation (NAT).

The WLAN IP Telephony Manager 2245 has a single physical Ethernet interface and MAC address. Therefore, all of the IP addresses are mapped to a single MAC address.

The WLAN IP Telephony Manager 2245 tags and untags packets with the SVP header. SVP packets have the protocol byte of the IP header set to 0x77. SVP-compliant APs use this proprietary tagging to give priority to tagged packets. For UDP (UNIStim and RTP) packets going from the wireless handset to the network, the WLAN IP Telephony Manager 2245 replaces the SVP protocol number, 0x77, with the UDP number, 0x11. For packets going from the network to the wireless handset, the protocol number is changed from 0x11 to 0x77.

There can be no Layer 3 routing in the path because packets that traverse the network between the wireless handset and the WLAN IP Telephony Manager 2245 are not standard IP packets (the packets use a non-standard protocol number). Therefore, the wireless handsets and WLAN IP Telephony Managers 2245 must be in the same logical subnet.

Overview

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Nortel Networks MOG6xx, MOG7xx manual Functional description

MOG6xx, MOG7xx specifications

Nortel Networks was a prominent player in the telecommunications industry, known for its innovative products and solutions. Among its offerings are the MOG6xx and MOG7xx series of voice over IP (VoIP) gateways, designed to enhance and facilitate voice communications over data networks.

The MOG6xx series, which includes models like MOG660 and MOG670, was introduced to serve as a bridge between traditional telephony and modern IP-based networks. These gateways feature advanced signaling and media capabilities that make them an essential tool for businesses looking to migrate to IP telephony. The MOG6xx series supports a wide range of protocols, including SIP, H.323, and MGCP, ensuring interoperability with various systems and devices.

One of the key characteristics of the MOG6xx series is its scalability. These gateways offer flexible capacity options that allow organizations to start with a smaller investment and expand as their communication needs grow. Additionally, the MOG6xx series is designed to support numerous simultaneous calls, ensuring that businesses can operate efficiently even during peak usage times.

The MOG7xx series, including the MOG770 and MOG730 models, builds upon the foundational technologies of the MOG6xx with enhanced features and capabilities. The MOG7xx series focuses on providing higher capacity and advanced functionalities, making it particularly suitable for larger enterprises or service providers. Key features include improved echo cancellation, advanced call routing, and enhanced security protocols to protect voice data from unauthorized access.

Both the MOG6xx and MOG7xx series leverage Nortel's expertise in voice quality assurance through integrated voice processing technologies. This ensures that calls maintain high audio quality, crucial for effective communication. Additionally, these gateways support various codecs to accommodate different network conditions, further enhancing their versatility.

In terms of management, both series are equipped with user-friendly interfaces and robust diagnostic tools that enable administrators to efficiently monitor and manage voice traffic. This not only simplifies troubleshooting but also assists in optimizing network performance.

Overall, the Nortel MOG6xx and MOG7xx series provide reliable, scalable, and flexible solutions for organizations looking to integrate voice communications with their data networks. Their support for industry-standard protocols, commitment to voice quality, and advanced feature set make them standout options in the increasingly competitive landscape of VoIP gateways.