> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/telecom-references/ss7-and-signalling/mtp2/mtp2-timers.md).

# MTP2 Timers

A total of 6 timers can be set as part of the common link configuration process. They are as follows (with definitions):

| Timer    | Description                                                                                                                                                                                    |
| -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| T1 Timer | Alignment ready timer (the same as TTC JT-Q.703 remote verification in progress timer). Typical value is 40000 milliseconds (40 seconds) for ITU and 13000 milliseconds (13 seconds) for ANSI. |
| T2 Timer | Not aligned timer (the same as TTC JT-Q.703 wait for remote startup in progress timer). Typical value is 5000 milliseconds (5 seconds) for ITU and 11800 milliseconds (11.8 seconds) for ANSI. |
| T3 Timer | Aligned timer (the same as TTC JT-Q.703 initialization in progress timer). Typical value is 1500 milliseconds (1.5 seconds) for ITU and 11800 milliseconds (11.8 seconds) for ANSI.            |
| T5 Timer | Sending SIB timer. Typical value is 100 milliseconds (0.1 second).                                                                                                                             |
| T6 Timer | Remote congestion timer. Typical value is 3000 milliseconds (3 seconds).                                                                                                                       |
| T7 Timer | Excessive delay of acknowledgment timer. Typical value is 1000 milliseconds (1 second).                                                                                                        |

**NOTE:** For all timers, a value of '0' is not permitted. Also, please note that there is no T4 Timer.

#### Screenshot

The following screenshot shows the fields for configuring timers in the MTP2 link configuration process.

![MTP2 link configuration timers](https://docs.telcobridges.com/w/images/7/70/MTP2-link-configuration-timers.jpg)


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