BusinessPhone Communication Platform 5.1
Commands > Commands 2000...2999

## 2157
First RTP-port number

This command defines the first port used for the
RTP-Sessions. According to the amount of RTP-Sessions (command 2158 Amount of RTP-sessions), all further even ports will be reserved.

Note

Only even numbers are allowed as first port number.
So far there is no specific need to change the default value.
When defining another value as the default one, please take care that the total sum of reserved RTP-ports ( First one + 2*number of sessions -1) are not getting in conflict with one of the reserved ones, listed below as well with the ones defined by command 2162.

##### Valid data

0-1024 |  | reserved |
1024 - 65534 |  |  |
1718-1720 |  | reserved |
6000-6003 |  | reserved by command 2162 Port number |
7000 |  | reserved by command 2162 Port number |
8100 |  | default |
9000 |  | reserved |
10000 |  | reserved |
10010 |  | reserved |
30000 |  | reserved |

Minimum required authority level from telephone: No

Accessible via BMS: Yes

Revision: E © Ericsson Enterprise 2003