Question

Setting up a Linksys PAP2 (PAP2T-UK) for ENTA Voip behind a Netgear DG834G router

Asked by: mendmycomputer

Hi People,
               We have recently bought a Linksys PAP2t-UK VOIP box and set up an account with Enta for VOIP services. After Lots of messing about we are finally able to make Outgoing calls (both parties can hear and talk to one another) however we can't recieve any incoming call's. We have been in to the netgear router and set up the following services all with port forwarding to teh VOIP device.

Start Port         End Port          Service Type  
         
5060                5061               TCP/UDP
53                   53                   UDP
10000              2000               UDP
69                   69                   UDP (TFTP service)

Enta's information asked us to allow ports 5060-5061 on TCP & UDP
and ports 10000 - 2000 on UDP. The other ports were in the Linksys documentation.

Incoming calls ring but when we pick up neither party can hear oneanother.

Any Ideas???

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Asked On
2006-12-05 at 03:21:29ID22082601
Tags

pap2

,

linksys

Topic

Voice Over IP

Participating Experts
4
Points
0
Comments
12

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Answers

 

by: IanThPosted on 2006-12-05 at 06:42:35ID: 18076776

what router have you got and what voip protocol does it use? Sip?

 

by: IanThPosted on 2006-12-05 at 06:43:12ID: 18076785

You need something like sip in able to open a hole in you firewall for an incomming connection

 

by: mendmycomputerPosted on 2006-12-05 at 10:59:20ID: 18078879

yes its sip

 

by: grbladesPosted on 2006-12-06 at 02:21:16ID: 18083819

The UDP port 5060 that you have open if for SIP.

The actual voice is carried over UDP with a varying range of ports. I assume the device is using ports 10,000 to 20,000. Twice you mentioned 10,000 to 2000 - is this a typo on your part or is this how you have configured it? The end port has to be greater than the start port so I think it should be 10,000 - 20,000

 

by: IanThPosted on 2006-12-06 at 02:30:17ID: 18083847

well is your pc configured to allow this. Do you have a firewall of some kind?

 

by: mendmycomputerPosted on 2006-12-06 at 02:35:12ID: 18083869

grblades: that was just a typo it is 20000.

IanTh:  what has a PC got to do with this?  The only euipment needed is a router, voip box (linksys) and a BT phone.  The firewall is on the router hence asking the questions here about any other ports.

 

by: grbladesPosted on 2006-12-06 at 02:51:03ID: 18083933

If the linksys support the use of a STUN (SIP Proxy) server you could configure it to use one. See http://www.voip-info.org/wiki/view/STUN

 

by: IanThPosted on 2006-12-06 at 02:51:18ID: 18083936

sorry I thought you where using a soft sip client on a pc not a phone


so you have opened 10000 - 20000 on the router on the inside side yes?

 

by: shepimportPosted on 2006-12-06 at 10:31:17ID: 18087181

Hola... Call thier customer support and get the IP/FQDN of thier proxy or session border controller... it will handle the NAT transversal of the SDP packet and send an options message to keep the SIP alg open.

Also, TFTP is a requested file and does not need a foward to it unless it is a server.  This is the function of a NAT.

 

by: mendmycomputerPosted on 2007-02-16 at 09:51:43ID: 18550355

We now have NAT disabled on our router and seperate routers with static IPS and the VOIP phoes work fine

 

by: Computer101Posted on 2007-03-22 at 18:03:46ID: 18776497

PAQed with points refunded (500)

Computer101
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20120131-EE-VQP-002

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