In this section:

Note

Solution Base articles are added frequently. Refer to SBC 1000-2000 Articles for the most current list of available articles.

Initial Configuration

I set the network configuration in the initial configuration page, but I still cannot see the SBC on the network.

  • Check the Ethernet port's speed and duplexity and match that to the Ethernet port configuration in the SBC.

After Initial Configuration, I am importing an old backup from a different the SBC, but my T1/E1 ports do not match the configuration.

  • Try inserting the card into the other slot. Also, you will have to reset the configuration to factory defaults in order to remove the auto populated ports and restore the old configuration again.

ISDN related issues

SIP related issues

Faxing

Where can I find a guide to configure a fax solution for Lync?

When do I use G.711 VS T.38?

It is recommended to use G.711 when implementing a fax solution where the SBC Edge (SBC) and the fax server are on the same LAN. T.38 should be used when there are many hops.

The faxes have quality issues

Audio Quality

Call Completion issues

Call Presentation

Certificate Related

Lync Deployment

Lync Operational

SNMP

Polling too frequently or polling too much data at once can lead to some undesirable behavior. Simple frequent polls (SNMP get) of one OID or one varbind is acceptable X number of seconds, and extensive polls such as SNMP walk of multiple OIDs or varbinds is acceptable X number of minutes.

SNMP walk of entire system should never be done.

Examples:

  • EMS does SNMP get of sysuptime every 60 seconds by default, which is acceptable.
  • Polling call statistics on all Signaling Groups should be completed every 5 minutes.