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Who can use the service?
The VULA service is addressed to all the licensed OAOs wishing to offer ultra-broadband services to their end customers through the New Generation Network of TIM without having to deploy their own access networks. The services provide all the technical and operational elements to allow OAOs to connect their own backbones to TIM ultra-broadband access network. The VULA offer can provide ultra-broadband services that can fit the specific technical and commercial needs of any OAO.
Description of the service
The VULA service consists in the provisioning of end users’ access lines traffic from/to the end user’s site to/from its OAO’s backbone by means of direct connection to the end user local exchange
The VULA reference network architecture is shown in Figure 1 (where FTTx stands for “FTTCab or FTTE”), and its supply chain is made of the following main elements: delivery, backhaul, access
Traffic delivery to OAOs is done uniquely at a “local exchange level”. In other words, the VULA service allows OAOs to collect only traffic from/to end customers of any TIM exchange node where an OLT is installed. Any OAO wishing to use VULA to collect traffic from/to more than one exchange node will have to request VULA delivery for each desired exchange node. To provide VULA, TIM will install a dedicated switch in each TIM exchange node where there is an OLT; the switch will be shared among all the OAOs requesting VULA delivery for that exchange node, one switch port being dedicated to each OAO requesting the delivery, and won’t be connected to the other nodes of the Telecom Italia network.
The backhaul component is the traffic carrying from the end customer’s access line to the OAO network, and in the case of the VULA service there is no bandwidth charge as the L2 Telecom Italia network is not used to carry traffic from/to the end user site to/from the OAO network.
Only one model for traffic aggregation is available for VULA service: the so called “MultiCos a banda dedicata”, where each access line has its own dedicated bandwidth with different Classes of Service (CoS). The supported CoS values are 0, 1, 2, 3, 5, 6
The access portion is the link between the end customer and its associated TIM exchange node (where the OLT is located), and varies according to the access technology on the customer side:
FTTCab/FTTE (VDSL2): Like ADSL lines, the end customer has a local loop through which it can use both the PSTN service (that may also be offered through the Wholesale WLR service) and data connectivity service, the latter in VDSL2 technology (Very High Speed DSL 2) or EVDSL (Enhanced VDSL). Data connectivity service requires the customer to have a VDSL2 /EVDSL modem (not included with service provisioning). The customer local loop may be terminated either on a street cabinet or in a local exchange: in both cases, it is connected to an ONU (Optical Network Unit) that may be either installed on top of a street cabinet (in which case the FTTCab VDSL2/EVDSL technology is adopted) or in a local exchange (in which case the FTTE VDSL2 technology is adopted). The PSTN component is provided through cabinet splitters (that split the baseband voice channel (where active), which is terminated on the TIM phone exchange, from the ultra-broadband data channel) in the former case and from the local exchange in the latter case. ONUs in turn are connected through fiber links to their associated OLTs (Optical Line Termination), that are located in Telecom Italia exchange nodes and that terminate the ultra-broadband channels.
VDSL2 /EVDSL access lines can be requested both in “shared mode”, i.e. sharing with the PSTN/WLR service (but NOT with the ISDN service, which requires an additional dedicated line) and in “naked” mode, i.e. without any PSTN service associated.
The following Figure 2 shows the FTTCab VDSL2/EVDSL access architecture.
The demarcation point between TIM and the OAO is the network termination located at the end customer’s site, where the VDSL2/EVDSL modem is connected.
FTTH: The end customer has a fiber in its home/office. When the access line is activated, TIM will bring and install an OTO (Optical Telecommunications Outlet) and an ONT (Optical Network Termination) in the customer’s site. The Customer Premise Equipment (CPE) that will be connected to the ONT is not included with the service provisioning. The fiber in the customer’s living environment is terminated on an OLT located in the Telecom Italia exchange node, according to GPON network architecture.
FTTH access lines can be requested only in “naked” mode, i.e. without a PSTN component.
The following Figure 3 shows the FTTH access architecture.
Several asymmetic profiles are available for VDSL2/EVDSL2 and FTTH accesses, with the downstream maximum speed greater than the upstream maximum speed.
Moreover, up to 4 User VLANs can be associated to any access line.
Information on geographical coverage is updated every week (Italian version only "Coperture").
Any OAO needing to co-locate its equipment at the Telecom Italia facilities, for example to set up connections for the VULA service, must first apply to TIM for the Co-location service. Any OAO wishing Wholesale TIM to provide connections from a Wholesale TIM exchange node to the OAO exchange node (it usually happens when the OAO facilities are not co-located) must first subscribe to the Interconnect Flow offer.
The VULA service has a pricing structure that can make OAO costs flexible. The pricing structure is based on the following key elements:
For VULA service there is no backhaul bandwidth charge.
Basing on the characterization of the above 2 elements, OAOs can customize their ultra-broadband connectivity offers for their end customers
For more technical-sales information on this service, please contact your Account Manager.
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The offer is intended for Operators holding individual licences or general permits for telecommunications networks and services offered to the public, already in existence when Italian Legislative Decree no. 259 of 1 August 2003, setting out the "Electronic Communications Code", came into force (pursuant to Art. 38 of the Code), as last amended by Legislative Decree No. 70 of 28 May 2012, as well as companies holding general permits for electronic communication networks and services, pursuant to Legislative Decree no. 259 of 1 August 2003, as last amended by Legislative Decree no. 70 of 28 May 2012.
The Bitstream NGA and VULA offer is revised at least once a year, depending on the technologic progresses, market demand and changes in the regulation. Any revision is subject to approval by AGCom (the Italian Authority for Communications).