Setting up simple dial plan rules on Cisco TelePresence Serial Gateway Series products to place calls from IP to Serial and Serial to IP
This article provides examples of dial plan rules for the Cisco TelePresence Serial Gateway Series products (collectively referred to here as the "serial gateway").
IP to Serial rules
Example 1 You are using a serial gateway with a gatekeeper and you have set the dial plan prefix for the gateway to 888. You want people to be able to dial 888 plus a serial destination number, and for the gateway to connect the call to the appropriate serial destination. The serial endpoints are connected through an ISDN IMUX device.
You create an IP to Serial dial plan rule like this:
- Called number matches: 888 (D+)
- Call this number: $1
Explanation: $1 refers to the first bracketed group in the number match field. This is D+, which means one or more of any digit. By putting the 888 first we exclude it from the D+ group, which means we are left with a valid endpoint number to call. So if someone dials 88814 (for example) from their IP endpoint, the gateway will strip the 888. Then it will connect the call to the serial endpoint that has ISDN number 14 associated with it.
Example 2 You are not using a gatekeeper. Another H.323 gateway (such as a Cisco TelePresence MCU) is routing 4-digit E.164 numbers to your serial gateway. You have serial endpoints connected to all 16 logical ports and the E.164 numbering scheme has been designed with this in mind, to include the range 4501 through 4516. This provides you with a set of 16 numbers that can be converted by a dial plan rule into serial endpoint numbers to which the gateway can connect calls.
You create sixteen separate IP to Serial dial plan rules (one per port) to associate each E.164 number (4501 through 4516) with the corresponding port (1 through 16). The rule for port 1 looks like this:
- Called number matches:
4501
- Call without RS-366 dialing
- Place call on:
1
The rule for port 2 looks like this:
- Called number matches:
4502
- Call without RS-366 dialing
- Place call on:
2
And so on until you have defined a rule for every port. In each rule, you increment by 1 the last two digits for Called number matches and the port number for Place call on.
Explanation: If the 4-digit number received from the H.323 device corresponds to 4501 then the serial gateway connects the call to port 1. If the 4-digit number corresponds to 4502 then the gateway connects the call to port 2, and so on.
Serial to IP rules
Example 3 You are using a serial gateway with a gatekeeper. Port 1 is reserved for use by system administrators. You have H.323 endpoints registered to your gatekeeper with E.164 numbers 1030 to 1049. Endpoint number 1030 is reserved for use by a technical helpdesk on the IP side. You want system administrators on the serial side to connect automatically to the IP helpdesk whenever they initiate a call from their serial endpoint (on port 1).
You create a Serial to IP dial plan rule like this:
- Match calls incoming on port: 1
- Call this number: 1030
Explanation: If a call is initiated from serial port 1, the serial gateway always places the outgoing call to the specified E.164 number and hence to the helpdesk.
Example 4 You are using a serial gateway with a gatekeeper. The serial network is set up such that the number 1234 routes to the gateway. You have Cisco IP endpoints registered to the gatekeeper with 4-digit E.164 numbers. For this example, assume that one endpoint is registered with E.164 number 5678. You want people on the serial side to access any endpoint on the IP side just by entering the appropriate number (without needing to enter the IP extension number via DTMF). Users know to enter the gateway number followed by an asterisk (*) separator and then the target IP endpoint number.
You create a Serial to IP dial plan rule like this:
- Match calls incoming on port: Any
- Enter the auto attendant + TCS-4
Explanation: When a serial endpoint initiates a call, provided the user enters the number in the correct format (in this example 1234*5678), the gateway directs the call to the auto attendant and the auto attendant dials out the IP number (5678) as a TCS-4 extension.
More information
See the online help for more information about dial plans, including syntax and additional examples.
This article applies to the following products:
- Cisco TelePresence Serial GW 3340 / MSE 8330 blade