TRANSip Resources

TRANSip in the HDX•C or the SLICE 2100•C consists of:

• TRANSip Software located in the controller board
  • Includes 100 IP Registrant entries per HDX•C shelf or SLICE 2100•C unit
  • Optional Extra IP Registrant entries available up to 1000 total subscribers per shelf
• TRANSip Media Services Circuit (MSC) board for the HDX•C (equivalent functionality is embedded in SLICE 2100•C)
  • Includes TRANSip Media Gateway Functionality
  • Optional TRANSip MoIP/FoIP Engines

Resource Planning

Common resources in the HDX•C and SLICE 2100•C consist of:

1) Ports
2) Timeslots
3) IP Registerants

Ports and timeslots are explained in the previous section. There are 1000 ports in the HDX•C and SLICE 2100•C. There are 512 timeslots in each HDX•C shelf and SLICE 2100•C unit. The amount of timeslots per HDX•C shelf in a system with more than 8 shelves will change based on the total number of shelves.

There are up to 1000 IP registrants in each HDX•C shelf or SLICE 2100•C unit. These registrants do not use any ports unless they are active, meaning in a call state. These IP registrants only use timeslots if they need to access the voice related services like access to TDM or custom announcements offered by HDX•C or SLICE 2100•C.

The timeslots and ports that are used for IP calls are located in the MSC board. Therefore, the number of timeslots and ports that are needed for IP calls should be assigned to the MSC board. One MSC board can have up to 128 timeslots. Additional boards should be added to the system if more timeslots (i.e. IP to TDM conversions) are needed.

Below are two examples to further clarify the shared resources in the HDX•C and SLICE 2100•C.

IP to IP Call

In this example, an IP phone calls another IP phone using HDX•C as the call controller. These phones are registered in the HDX•C, thus they occupy 2 of the possible 1000 entries in this HDX•C shelf. They do not occupy any port until they call each other. The moment they call each other, each of them occupies a port on the MSC board. However, since there is no IP to TDM conversion, no timeslots are used.

Total resources used in this example:

• Ports = 2 (on the MSC Board during the call)
• Timeslots = 0 (no TDM connection)
• IP Registrants = 2 (each IP phone is registered to the HDX•C)

IP to TDM Call

In this example, an IP phone calls an analog phone using TRANSip HDX•C as the call controller and media gateway. The IP phone is regis-tered to TRANSip and occupies 1 of the possible 1000 entries in the HDX•C shelf. The moment the IP phone calls the analog phone or vice versa, a timeslot is used in the MSC board for media gateway functionality.

The total resources used in this example:

• Ports = 2 (1 port on the MSC board and 1 port for the analog line)
• Timeslots = 2 (1 timeslot on the MSC board and 1 timeslot on the analog line)
• IP Registrant = 1 (only 1 IP phone is registered to the HDX•C)

The resource planning might be complicated due to the number of variants. At REDCOM, we will be more than happy to help with resource planning if our customers have any questions or concerns.

IP User Registration