[Serusers] PSTN DID T1 Connectivity

Darren Sessions dsessions at ionosphere.net
Fri Nov 21 15:19:49 CET 2003


I am in the process of evaluating SER to replace my company's current SIP
Proxy/GateKeeper. I've been racking my brain with the routing piece in the
ser.cfg file along with a friend.

Here are my variables:

Router IP: 10.10.1.5
SER Sun Box IP: 10.10.0.55
Sipura IAD: 10.10.1.134

Sipura Box user ID is: 8646783188

Testing with G711alaw and G711ulaw but would like to move to g729a/b.

Cisco Dialpeer is:

dial-peer voice 1005 voip
 huntstop
 destination-pattern 3188
 progress_ind progress enable 8
 translate-outgoing called 1
 session protocol sipv2
 session target ipv4:10.10.0.55
 codec g711alaw

The translation-outgoing called 1 simply adds the 864678.

No Authentication currently needed in testing phase.

No DNS currently in use.

Cisco 3640 Router connected to phone company with DID based T1 and the PBX
is connected to the router.

We currently have about 100+ DID's from our Bell company - because the T1 to
bell is a DID line, we only get four digits on an inbound call.

Essentially the router does nothing more than forward all calls to the PBX
via a dial-peer - but strips off the specific phone numbers we want to
forward to SIP based devices and pipes them out VoIP.

In this whole process, the router adds the prefix 864678 to the dialed
numbers so when the router sends the call to SER, it's 864678xxxx.

Once SER gets that call (i.e. 8646783188 at 10.10.1.5) it should forward it to
the Sipura Box.

I'd post what I've got, but I'm not sure it'd even classify as a
configuration. :)

I am a newbie - so everyone is forewarned.

Thanks a ton in advance,

 - Darren Sessions




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