200 users will be supported in Medium branch by the Headquarters (HQ) cluster.

G.711 encoding will be used.

Total voice bandwidth required for 80 simultaneous users = 80*80Kbps= 6.4Mbps

These users will utilize both the Hoteling and Voicemail applications deployed at HQ.

1111 6^th Ave will be connected to HQ via (2) 7206 routers connected to dual 6509s with Flexwans via a primary DS3 line and a set of (4) T1s for backup. It should be noted that in the case of a DS3 failure, G.729 encoding must be manually configured for the IP phones at the remote site due the reduced bandwidth available. Transcoding resources would also need to be manually configured so that these users can access voicemail and gateway resources.

The (4) T1s will be divided into two MLPPP groups, one for voice and one for data. (2) T1s will be used to serve only voice traffic, and (2) T1s will be used to serve only data traffic. Data and voice traffic will be forced over the appropriate MLPPP group by utilizing route filters, since voice and data will be on different subnets. No QOS is required on these links given that voice and data are no longer contending for the same limited WAN bandwidth. When MLPPP and LLQ are supported on the Flexwan, the need to partition voice and data into two MLPPP groups will be eliminated, and a more efficient use of the WAN bandwidth will be possible.

No Call Admission Control is being configured given 45Mbps of available WAN bandwidth.

Call Admission Control will be configured for the backup scenario, when voice is traversing the (2) T1 voice MLPPP group.

LLQ will be implemented on the DS3 links to insure voice priority over data. CBWFQ will be used for the video traffic.

Dual routers running HSRP will be used at each location for redundancy.

Separate VLANs for voice and data will be deployed.

The 7206 routers will be used for inter-VLAN routing.

A single VG248 will be deployed at each site to terminate Fax and modem lines.

Survivable Remote Site Telephony (SRST) will be deployed on the 7206 router. SRST on the 7206 NPE 400 has the ability to support a maximum of 500 phones with 512MB of SRAM and 300 phones with 256MB of SRAM.

A 3662 router will be deployed at 1111 6th Ave to terminate 10 FXO ports. This router will act as a gateway for 911 calls to insure the appropriate location information is relayed to 911. It will also serve as a PSTN gateway in the event of a WAN facility failure, and connectivity to the CallManager in NY Hub (HQ) is lost. With SRST deployed on the 7206, the ability to make calls will be maintained. The FXO circuits may also be terminated on a Power Failure Transfer system to analog handsets. This would provide dial out capability in the case of the WAN being unavailable or a 3600 gateway failure.

50 users will be supported in small branch by the HQ cluster.

G.711 encoding will be used.

Total voice bandwidth required for 24 simultaneous users = 20*80Kbps= 1.6Mbps

These users will utilize both the Hoteling and voicemail applications deployed at HQ.

Small Branch will be connected to HQ via (1) 3662 router connected to a 6509 with Flexwans via 3 T1s for a total of 4.5Mbps of bandwidth.

Two VLANs will be deployed at 55 Broad Street, one for voice and one for data.

The 3 T1s will be used in the following manner. (1) T1 will be dedicated for voice. (2) T1s will be configured in a MLPPP group and dedicated to voice traffic. Data and voice traffic will be forced over the appropriate MLPPP group by utilizing route filters, since voice and data will be on different subnets. No QOS is required on these links given that voice and data are no longer contending for the same limited WAN bandwidth. When MLPPP and LLQ are supported on the Flexwan, the need to partition voice and data into two MLPPP groups will be eliminated, and a more efficient use of the WAN bandwidth will be possible.

Call Admission Control should be configured to limit the number of calls so that (2) T1s of bandwidth are not exceeded.

The 3662 router will be used for inter-VLAN routing.

(8) FXS ports will be provided in the 3662 to provide Fax/Modem connectivity.

SRST will be implemented in the 3662 router, which can support a maximum of 144 phones. The (4) FXO circuits will be used for 911 access. In the case of a WAN facility failure, these 4 FXO ports can also be used for PSTN access. The FXO circuits may also be terminated on a Power Failure Transfer system to analog handsets. This would provide dial out capability in the case of the WAN being unavailable or a 3600 gateway failure.

There is no requirement to support Video Teleconferencing at this location.