Outbound faxes from a Dialogic SR140 not using T.38

Had an issue with an IP fax server (RelayFax with a Dialogic SR140 connecting via SIP trunk to an Adtran SBC) where inbound faxes were working fine and using T38 but outbound faxes were never negotiating T.38 and falling back to G.711 passthrough.  As a result we were having some unreliable outbound faxes. In the Brooktrout Configuration Tool under the T.38 Parameters tab we had to change the delay time for media renegotiation.  The “Media Renegotiate Delay Outbound, msec” was set to “-1” and I changed this to 5000 msecs.  See...

Perform a packet capture on an Adtran router

To perform a packet capture directly on an Adtran device do the following: ip access-list extended CAPTURE permit ip any host 1.2.3.4 permit ip host 1.2.3.4 any Where “1.2.3.4” is the IP that you want to watch.  Then run debugging on that ACL: debug ip packet CAPTURE detail See https://supportforums.adtran.com/message/2248#2248 for more...

Lync Enterprise Voice with Cisco or Adtran routers

These are the steps to setup Lync 2013 to work with Enterprise Voice through a Cisco router running CME (CallManager Express) or an Adtran 7000 router like the NetVanta 7100. From the Lync Topology Builder open your site, Shared Components then right-click on PSTN Gateways and select New.  Enter the IP address of your router and choose next.  Click Next again.  On the last page change SIP Transport Protocol from TLS to TCP, select your mediation server if it’s not already automatically chosen and choose finish.  Publish the updated topology.                                 Next hop over to the Lync Server 2013 Control Panel.  Choose Voice Routing and then Trunk Configuration.  Edit your site configuration and scroll down to Called Number Translation Rules.  I added 2 rules, one to remove + and the other to remove 9 for outbound calls.                         Next go to Dial Plan and edit the site dial plan.  If you don’t have one create one for your Lync site.  Scroll down to Associated Normalization Rules and create a new rule.  I created a rule where the call that matched had to be at least 3 digits and I didn’t remove or add any digits.       Next go to Route and choose New.  Name your route and then add patterns to match for outbound calls and extensions on your CME or 7100 router.  I chose to add 9 followed by anything for outbound calls and then 2.., 3.. and 60. as those are all...