Alcatel-Lucent OpenTouch Suite for Mid sized and Large Enterprises Standard Offer Chapter 13 - Topology – Network Services April 2014 Offer - Ed.02 Ref.
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Table of contents 1 Topology overview - deployment design ___________________________________________ 4 2 Distributed architecture with centralized call control _________________________________ 5 2.1 Basic architectural configurations ____________________________________________________ 5 2.1.1 2.1.2 2.1.3 2.
1 Topology overview - deployment design The Alcatel-Lucent OmniPCX Enterprise Communication Server is part of the next generation of enterprise IP-PBX communication systems. It is designed around native IP technologies and allows the customer to deploy mixed or legacy solutions to support a converged data-voice network.
2 Distributed architecture with centralized call control In a distributed architecture with centralized call control, only one communication server handles calls (although it may be duplicated for standby) for all sites. The Alcatel-Lucent OmniPCX Enterprise Communication Server is supported on an IP appliance server (IP AS), an IP rack server (IPRS), or an IP crystal server (IPCS). The server is typically installed at the central site. 2.
2.1.1 Media gateway example The following figure illustrates a configuration based on an IP media gateway. In the main location, an auxiliary media gateway is used for additional features (large DECT configurations, 4645 voice mail server).
2.1.2 TDM and media gateway example This configuration shows a full TDM system for the main location (headquarters), possibly resulting from an OmniPCX Enterprise migration. One branch office is equipped with a Remote Crystal shelf linked to the multi-level ACT structure. To take advantage of the IP network, new branch offices are equipped with IP (Crystal and IP media gateways).
2.1.3 TDM and Appliance Server example This configuration shows a full TDM system in the main location, but uses an IPAS placed in a secure location. In this case, the number of Crystal chains is limited to two. All branch offices are equipped with IP (Crystal) media gateways. 2.2 Interconnecting IP media gateways The Communication Server architecture requires a voice enabled IP network interconnecting each business site (physical connections often based on routers over frame relay or leased lines).
The Alcatel-Lucent OmniPCX Enterprise Communication Server can control up to 240 racks (IP Rack Module and IP Crystal Rack), distributed over an IP-based WAN, with a maximum of 90 IP Crystal Server racks. Note: An IP media gateway (IPMG) consists of one, two, or three racks. An IP Crystal media gateway has one rack. 2.2.1 Configuration Configuring an IP Media Gateway is easy.
3 Distributed architecture with networking call control 3.1 Corporate ABC networking: infrastructure The Alcatel-Lucent OmniPCX Enterprise Communication Server can support up to 100,000 users (TDM, DECT, IP) using various geographic design topologies (legacy or IP).
Homogeneous networks may consist of Alcatel-Lucent OmniPCX Enterprise Communication Server R10.0 nodes only, or may include nodes of Alcatel-Lucent OmniPCX Enterprise Communication Servers R10.0, R9.0, R8.0, R8.0.1 and R7.1. If in the customer network, some nodes run in releases under 9.0, a smooth transition is still possible by interconnecting nodes in different versions during a controlled migration period.
3.1.2 Private ABC networks using TDM leased lines Systems can be interconnected using: – G.703/G.704 T1/E1 leased lines. ABC signaling is transported using TS16. Voice is transported in remaining digital frames – Systems can be interconnected using several T1/E1 interfaces or a part of a single T1/E1 (fractional T1/E1). It is also possible to provide ABC-VPN over leased lines.
average traffic requirements and overflow traffic during peak traffic periods to an alternative network, as illustrated below: Service characteristics The Alcatel-Lucent VPN configuration offers full ABC services regardless of the network used for voice transport. Telephone signaling always uses a reserved channel in the digital leased line (D channel). The application uses virtual direct inward dialing (DID) to overflow calls when the leased line is saturated.
Service characteristics The Alcatel-Lucent VPN configuration offers full ABC services. The service uses virtual DID. A limited set of DID numbers is reserved (according to the traffic requirements) so the application can integrate users with or without DID numbers into the network while saving DID trunk expenses. 3.1.4 VoIP networking in ABC networks The Alcatel-Lucent OmniPCX Enterprise Communication Server provides full feature transparency via leased lines and ISDN/PSTN networks.
The H.323 – – – – gateways and ABC building blocks provide: Standard VoIP (H.323): G.711, G.723.1 and G.
Call admission control on H.323 VoIP networks using internal mechanisms CAC (call admission control) is used to prevent a new call from being routed over the IP network if there is not enough available bandwidth. The call is rejected or is rerouted through the PSTN with complete feature transparency. Due to the characteristics of IP, it is not possible to dynamically adapt to the available bandwidth on the network.
3.1.5 Private ABC sub-networks using ABC trunk groups on IP The ABC trunk groups on IP provide an alternative to the TDM leased lines to connect ABC subnetworks within a network consisting of ABC sub-networks (i.e. an ABC supranetwork). The ABC trunk groups on IP enable a fully-fledged IP solution for communications within an ABC supranetwork. Within ABC sub-networks, the inter-node IP links are provided by ABC logical links on IP.
– – – – IP Touch Security service (encryption) T.38 fax communications over IP Possibility to configure heterogeneous numbering plan in the ABC supranetwork Compatibility with current network services of the Alcatel-Lucent OmniPCX Enterprise Communication Server (e.g. Automatic Route Selection) An ABC-F Trunk Group on IP can only be configured between two nodes (of different ABC subnetworks) in R9.0 or higher. An ABC sub-network can contain nodes in releases lower than R9.
Because of its support for QSIG-BC and GF protocols, Alcatel-Lucent OmniPCX Enterprise Communication Server inter-PBX networking interoperates with third party QSIG devices and/or PBXs. 3.2.1 Private numbering (dialing) plan in an ABC network The private numbering (dialing) plan is homogeneous. Directory numbers can have up to eight digits in an ABC homogeneous network (each number is unique in the network).
– – – – – – – – Transparency of rotary and DTMF dialing Retransmission of last number dialed (redial) ISDN/PSTN supplementary services Three-party conference Six-party casual conference 29-party meet me conference 29-party moderated (master) conference Announcement/paging on speaker 3.2.
– – – – – – – – – – – – – – – – – – – – – – – Call by name Call distribution for decentralized and centralized attendants Call offer Chained call Class of service identification Class of traffic indication on line keys (internal call, external call, overflow) Do not disturb override Dynamic accesses to user call resources (DECT, voice mail, text mail, etc.
Regardless of the configuration, to users and network managers, voice mail services are the same as for a single voice mail system. Note: See the chapter on messaging systems for more details. The Alcatel-Lucent OmniTouch Unified Communications system is available. See the specific documentation for details on multi-site environments. 3.2.
Adaptive routing on switched networks is different than on fixed leased lines. The private voice topology through the PSTN network can be “logically” defined by creating “VPN jumps” to link the different nodes to form a fully meshed or partially meshed topology. Each VPN jump has an associated “cost.” Before a private network call is set up, the routing service selects the best route, which is the route with the computed lowest cost. 3.2.
Forced on-net routing The ARS/LCR application built into the Alcatel-Lucent OmniPCX Enterprise Communication Server analyzes the public number dialed before setting up the call (ARS prefix). If the called party belongs to the private network, the ARS application will automatically choose the least costly route (in this case, a private route) and provide ABC feature transparency. Break out (hop off routing) When a user calls an external party, the number dialed is analyzed by the ARS/LCR application.
Network management can be centralized or distributed. Configuration broadcast mechanism The management workstation can manage one, several, or all the nodes in a private Alcatel-Lucent OmniPCX Enterprise Communication Server network. This mechanism does not use any bandwidth on the B channels of the ABC links; only the signaling channel (D channel) is used. A network manager can program or modify any system, station user, or voice mail system parameter from one unique PC client window.
– Topology views may cover every network element and application. Alarm status is indicated by a change in the color of the associated icon. In depth analysis of the alarm status may be conducted, either by using the hypervisor event manager, or by using the proprietary tools designed by the network item provider. Hypervisors do not provide configuration capabilities because this is specifically linked to each network item.
connected to another Communication Server, through ABC/IP Trunk Group or ABC TDM Links) belonging to different Communication Servers. – Peer-to-peer communications in conversation state are maintained – In set-up phase, communications are released except for incoming external communications, which are routed to the relevant entity (e.g.
ISVPN is also supported on the Alcatel-Lucent OmniPCX Office, which is used to build small, simple enterprise/office networks over ISDN. 3.3.2 DPNSS networking The Alcatel-Lucent OmniPCX Enterprise Communication Server offers a compliant legacy Digital Private Network Signaling System (DPNSS) interface and protocol, mainly used to connect the voice system to: – DPNSS installed base not compatible with QSIG – VPN offer of BT (FEATURENET) and Cable & Wireless in UK – Alternative carriers (e.g.
QSIG-BC services The level of service of QSIG-BC (basic call) is the same as on traditional tie lines with the following advantages: – Caller and connected party number identification – Voice call Accounting Each outgoing call on the QSIG trunk generates a Call Detail Record (CDR) with the duration of the call. Interaction between the different systems An Alcatel-Lucent OmniPCX Enterprise Communication Server user can make a call on a public trunk line located on another PBX through the QSIG-BC interface.
– – – Call intrusion (Barge-in) Do not disturb Message waiting indication (when the messaging system is the Alcatel-Lucent 4635 or Alcatel-Lucent 4645) 3.3.4 SIP interoperability The Alcatel-Lucent OmniPCX Enterprise Communication Server and the Alcatel-Lucent OmniPCX Office Communication Server are fully compatible with SIP. See the chapter on SIP for more information. 3.3.5 OmniMobility voice over wireless LAN 3.3.5.
The Alcatel-Lucent OmniAccess WLAN Access Points (APs): operate with the OmniAccess WLAN switches to provide a high performance, centrally managed, wireless mobility solution for enterprises. They act as wireless (radio) interfaces for the mobile WLAN handsets. The Alcatel-Lucent solution offers a wide range of access points to support a variety of 802.11n solutions while also supporting legacy 802.11a/b/g devices. APs are available with both single and dual-radios to support communications in the 2.
The OmniVista 3600 Air Manager supports wireless equipment from seventeen different vendors, including Alcatel-Lucent, Aruba Networks, Cisco, Symbol/Motorola, Trapeze, Meru, HP ProCurve, Nortel, Proxim, Foundry, Colubris, Tropos, 3com, Enterasys, Juniper, Lancom, and Avaya. The Alcatel-Lucent WLAN solutions support up to 512 access points per Supervisor Card 3 and up to 2048 access points on a single WLAN switch chassis (with 4 supervisor card 3), centralized encryption for 802.
support up to four Supervisor-III modules for a total of 2,048 APs. If the system needs to grow larger than this multiple controllers can be teamed to work together as a master-local grouping. In this case many controllers may work together as a cohesive system with a single point of management. Deployments of over 1,000 APs will at times use a dedicated master controller which will support no AP connections but be dedicated to system management.
OAW-4504XM: Up to 32 AP (LAN Connected) Up to 128 Remote AP/Mesh AP Up to 2048 users OAW-4504XM Warning: Legacy OAW-4504 is not supported anymore with AOS-W 6.2 The last supported version on 4504 is AOS-W 6.1 OAW-4504XM is supported only with AOS-W 6.
Up to 1024 AP (Campus AP) Up to 1024 Remote AP Up to 24576 concurrent devices OAW-4750: Up to 2048 AP (Campus AP) Up to 2048 Remote AP Up to 32768 concurrent devices Embedded Stateful Inspection firewall options allow for robust security solutions. A line of OmniAccess WLAN Access Points (APs) designed to address the needs of enterprise wireless LAN deployments. APs include single and dual-radio 802.11a/b/g/n models with a variety of fixed and detachable antenna options.
OAW-AP104: 4 x RP-SMA antenna interface connectors for external antenna support (2 per band) OAW-AP104 OAW-AP105 OAW-AP105: 4 x integrated, omnidirectional antenna elements (supporting 2x2 MIMO). 1 x 100/1000Base-T Ethernet port 12 V DC for external AC-supplied power A line of OmniAccess instant WLAN Access Points (IAPs) based on virtual Controller, Each IAP is eligible to become Virtual Controller. OAW-IAP175 Minimum AOS-W 6.1.4-3.0.0.0 to support IAP175 Dual-Radio IEEE 802.11n (Outdoor) 802.
802.11a/n and b/g/n 3x3 MIMO (3 spatial streams) up to 450Mbps (HT40) Interface: 2 x 10/100/1000Base-T (RJ-45) Ethernet interface (Power over Ethernet) OAW-IAP134: support for selectable 802.11 b/g/n or 802.11 a/n operations, 3x3 MIMO dual-band RP-SMA detachable antenna interfaces. OAW-IAP135: same features as AP134 but with embedded 3x3 MIMO dual-band antennas. OAW-IAP134 OAW-IAP105 Dual Radio (Indoor) 802.
OAW-RAP108 & OAW-RAP109 Minimum version to support RAP10x : AOS-W 6.2.0 or Instant OS 3.2.0.0 Dual Radio (Indoor) 802.11a/n and b/g/n 2x2 MIMO (two spatial stream) , 300Mbps Instant or controller-managed Two 2.
3.3.5.1.3 Cisco compatibility The Alcatel-Lucent OmniTouch 8118/8128 WLAN Handsets can be included in a Cisco WLAN environment. Wireless switches and access points are provided by Cisco, WLAN handsets and the Communication Server are provided by Alcatel-Lucent Enterprise. Alcatel-Lucent OmniTouch 8118/8128 WLAN Handsets are compliant with the CCXv2 Cisco proprietary standard. 3.3.5.1.4 LAN standards and certifications The Alcatel-Lucent OmniAccess Wireless system is Wi-Fi Alliance certified for 802.
Generally, in Campus / LAN architecture, IP domains are not used because: There is no IP bandwidth restriction; so, it is not necessary to limit the number of communications between 2 locations G711 algorithm is used to code the Voice over IP flows Roaming Refers to the ability to be reached (i.e.: making and receiving calls) in a different Site or Network. Inside a site or a network, roaming provides a wireless device the capability to associate to an AP after a power-on or a reset of this device.
Callback request When the phone is not in active use, menus are available to deal with working requirements to manage: Call forwarding Last caller callback Last number redial Call pickup Waiting call consultation Call Park/Retrieve Do not disturb Wake up/Appointment reminders Room status management Suite Wake up (hotel configuration) Password modification Meet me conference call organization Hunting group participation Voice mail consultation Business account code management
3.3.5.2.3 Call Admission Control (CAC) and Wi-Fi CAC The Communication Server performs Call Admission Control (CAC) to manage simultaneous communications in a multi-site environment, in order to avoid tromboning and bandwidth issues on the WAN. CAC is performed by the WLAN switch: CAC parameters are defined per switch/AP group. Wi-Fi___33 CAC parameters are based on the maximum number of calls per AP or on the usable bandwidth per AP.
Data packets: 0 3.3.5.2.6 Compression algorithm G711 and G729A: Multi-Site configuration (one Communication Server): G711 in Intra-domain and G729A in Inter-Domain (WAN) Multi-Node Configuration: G711 in Intra-Node and G729A in Inter-Node (WAN) 3.3.5.2.7 Survivability DHCP OmniTouch 8118/8128 WLAN Handsets need IP parameters to operate. When handsets are configured to acquire IP parameters from a DHCP server, they send a DHCP request message at each power on.
3.3.5.3 Topology and architecture 3.3.5.3.1 Global architecture An Alcatel-Lucent OmniPCX Enterprise Communication Server can handle different types of sets connected through IP: Legacy sets behind an IP Media Gateway (e.g. analog, DECT, Alcatel-Lucent sets) IP Phone sets (e.g. IP Touch hard-phone, soft-phone) Alcatel-Lucent OmniTouch 8118/8128 WLAN Handsets In the following sections some architecture examples are described to demonstrate VoWLAN solutions that can be implemented.
3.3.5.3.2 VoWLAN topology and architecture examples Campus – LAN – single communication server architecture The Alcatel-Lucent VoWLAN solution can be deployed in a single site environment regardless of the data network architecture. User roaming and handover are possible even if the data network is segmented at Layer 2 or 3. Access Points, as OmniTouch 8118/8128 WLAN Handsets, can belong to different IP sub-networks.
In a multi-site topology interconnected by WAN (limited bandwidth), at least one Wireless LAN switch is mandatory on each site. In general, communications are coded with: The G711 algorithm on a given a site, to favor voice audio quality The G729 algorithm between sites, to favor bandwidth If G729 is used for OmniTouch 8118/8128 WLAN Handset communications, all communications (including other IP Touch phones) will use this compression algorithm.
Direct RTP in an inter-site architecture With the introduction of Direct RTP and the NOE protocol for the OmniTouch 8118/8128 WLAN Handset, calls are treated more economically on an inter-site basis. The following diagrams indicate the call progression from OmniTouch 8118/8128 WLAN Handset A to OmniTouch 8118/8128 WLAN Handset B via the WAN without compression/decompression.
Mesh PORTAL (MPP): this AP is connected to the OmniAccess Wireless switch via a wired link. This mesh portal may connect WLAN clients. Mesh bridging Mesh bridging provides communications (voice and data) from one LAN to another LAN via a radio link. CAC limitation only applies to VoWLAN handsets. The mesh portal and mesh point may connect WLAN clients. Complex topology example Multi hops, backhauling and mesh bridging can coexist in the same mesh.
Compression algorithm: G711 Framing: 20ms Security: WPA2/PSK Standard mode: 802.11a or 802.11g or 802.11n 3.3.5.3.4 Instant access point Instant AP is a controllerless WLAN solution based on a Virtual Controller (VC) and does not require any license. The OmniAccess Instant can be installed at a single site or deployed across multiple geographicallydispersed locations.
Intranet: this network is trusted; firewalls and NATs (Network Address Translation) are not required Internet: this network, not trusted, requires firewalls and NAT on a remote and/or local router. Remote IP touch sets are not supported. VPN used on remote access points avoids NAT issues. The IP Touch and the 81x8 operate in twinset mode.
The lightweight OmniTouch 8118/8128 WLAN Handsets are extremely simple to use, require minimal training, and are durable enough to withstand the rigors of workplace use. The rugged design has no moving parts or external antenna. A complete set of accessories is available including headsets, chargers, and carrying cases. OmniTouch 8118/8128 WLAN Handset offer more than just telephone communication.
In a Site to Site configuration, a call between two OmniTouch WLAN handsets (OT8118/OT8128) is treated as an IP Touch phone call with the implementation of Direct RTP. The G711 algorithm is used for local communication on each site and G729A is configured on the WAN to reduce bandwidth consumption. Security Wi-Fi sets support the WPA2 security mechanism. This protocol is based on the final IEEE 802.11i amendment of the 802.11 standard. WPA2, like WPA, has two operational modes: Enterprise and Personal.
The DECT standard is designed to provide mobility services in environments with high user density such as large buildings or campuses: 10 000 Erlangs/Km sq. (GSM 200 Erlangs/Km sq., DCS 500 Erlangs/Km sq.). This standard is based on a digital technology providing high quality communication, with Roaming and Handover (Handoff) capabilities. CDCS (continuous dynamic channel selection) is a unique feature that ensures that every mobile phone operates on the best available radio channel.
8340 IP-DECT Base Station is directly handled by the Communication Server via an IP connection allowing up to 11 simultaneous calls. TDM Base Station available in two versions: Intelligent Base Station (IBS) available in two versions: indoor (4070 IO) and outdoor (4070 EO). IBS can be connected to UA boards (Crystal Hardware) or UAI/MIX boards (Common Hardware) allowing up to 6 simultaneous calls. A4070 IO A4070 EO Radio Base Station (RBS).
Handover: During a conversation, a mobile user Roaming: A mobile user can make or receive can move within the company premises without calls from any location in the OmniPCX Enterprise any interruption or interference. radio coverage area. The DECT handset is always synchronized with a radio base station and can switch from one base station to another. To cover a site, radio base stations, connected to the OmniPCX Enterprise, are mounted to create a private cellular network.
3.3.6.1.3 Architecture providing DECT services The OmniPCX Media Gateway is equipped with a hardware board which connects to a base station. The base Station connects to a UA (digital) port on the Media gateway. There are several types of boards providing UA ports: UAI board The UAI board comes in different models: UAI4, UAI8, or UAI16 Mixed board The Mixed board provides mixed interfaces: ISDN (T0) / UA / analog (SLI) out of all the installed mixed boards; the UA port support is 0, 2, or 4.
Connections to the OmniPCX ACT: Two adjacent standard UA ports Twisted-pair cable (maximum distance: 1200 meters / approx.
3.3.6.2.3 8340 IP-DECT Access Point 8340 IP-DECT Access Point has been designed to offer DECT connectivity on IP/Ethernet networks.
Dimensions (h x w x d) Indoor: 174x145x43 mm – 6.85x5.70x1.69 in. Outdoor box: 240x290x88 mm – 9.45x11.42x3.46 in. Weight Indoor: 302g – 10,65oz Outdoor: 1,23 Kg – 43,39oz IP class Indoor IP40, Outdoor box: IP66 Operating Temp.
Audio codecs ITU-T G711 (A,µ), G729AB Framing 20, 30, 40, 50 and 60 ms Branch Office support Yes Echo cancellation Yes Serviceability Downloadable software Web based management tool DECT connectivity DECT Frequency bands EMEA: 1880-1900 MHz Latin America: 1910-1930 MHz North America: 1920-1930 MHz Asia: 1900-1906 MHz Antenna Integrated omnidirectional or SMA connector for external antenna Sensitivity Typical -90 dBm measured at antenna connection at BER=0.
To manage mobility roaming in a multi-site configuration To collect IP-DECT performance and synchronization data The software can be downloaded from the Alcatel-Lucent Web Portal. There is no redundancy of the DAP Manager.
3.3.6.2.6 Gain antenna In certain instances, gain antennae may be useful to reduce the number of radio base stations which can entail a significant cost decrease. Gain antennae may reduce the number of base stations needed for outdoor coverage by a factor of three. They may be connected to a RBS or an IBS base station.
The Alcatel-Lucent DECT handsets have access to the following services: Internal text message mailbox Number of new text messages Read, save content Answer or the sender back Send new messages (custom or standard messages and messages to be completed) Unanswered ISDN calls Number Read and save caller identity (ID) Callback Voice mailbox: direct access to the voice mailbox with DTMF mode automatically on (voice guidance).
IPUIN. The final registration date may also be defined. After this date, the handset is no longer authorized to make external calls. The registration process may be performed from the attendant console to enable quick configuration. Overflow to a directory number If a wireless phone does not answer when paged (switched off, out of coverage, etc.), the AlcatelLucent OmniPCX Enterprise Communication Server reroutes the call to a predefined directory number.
