Bundle Multiple ISDN links

[wmmak]

Hi All,

If I want to bundle multiple ISDN links, is it using rotary group?

If so, can I configure a single number for two ISDN lines? or Is it a telco issue?

Regards,

mak

[Georg Pauwen]

Hello Mak,

either rotary groups or dialer profiles can be used to bundle multiple BRI interfaces. Check the links below for the respective documentation:

Configuring MPPP for Multiple BRIs using Rotary Groups

http://www.cisco.com/en/US/tech/tk713/tk507/technologies_configuration_example09186a00801035c1.shtml

Configuring Multilink PPP with Multiple BRI Interfaces

http://www.cisco.com/en/US/tech/tk713/tk507/technologies_configuration_example09186a00800a3b7a.shtml

HTH,

GP

[Kevin Dorrell]

I presume you really do mean multiple ISDN lines rather than multiple 'B' channels on the same physical connection.

For incoming calls to your router, it is a telco issue because you will probably want both your lines on the same called number. (Normally, each ISDN has its own telephone number or set of telephone numbers.) Your Telco should be able to arrange the lines to the same number.

For outgoing calls, if you are using dialer profiles rather than legacy DDR, it is simply a matter of putting both ISDN BRI interfaces into the same dialer pool, and getting the profile dialer interfaces to use the diaer pool.

Kevin Dorrell

Luxembourg