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The Graveyard - Products No Longer Supported => Routers / COVR => DGL-5500 => Topic started by: jubanet on November 05, 2014, 07:08:36 AM

Title: Anyone having voip problems with DGL-5500???
Post by: jubanet on November 05, 2014, 07:08:36 AM

I just replaced a Linksys E2500 router with this DGL-5500, and my IP Phone (grandstream DP715) became fully unstable.
I'm running the latest fw version (1.12 b05) with SIP ALG turned on, and these are the problems:
IP Phone cannot reach the SIP server after a while logged in (even showing that the sip account is registered it doesn´t make and/or receive any calls.
The router does not recognizes SIP packages coming from the phone IP address, and says that the IP Phone is running game packages (or amazon video packages), I tried three types of IP configuration: totally dynamic, fixing the IP on DHCP server and just using an IP outside the DHCP range, but always got the same results, also tried to turn off SIP ALG but it have a worst performance, so I left it ON.
Phone is the most important application used on my network and I thought that the router will put it´s ip on the first place on "priorities" list, but this is not happening.
Does someone has any clue on how to solve this?
I´m really thinking on going back to linksys router...[/font][/size][/size]

Title: Re: Anyone having voip problems with DGL-5500???
Post by: FurryNutz on November 05, 2014, 07:33:03 AM

Link>Welcome! (http://forums.dlink.com/index.php?topic=48135.0)

• What region are you located?
• Was a Factory Reset performed before and after any firmware updates then set up from scratch?

>FW Update Process (http://forums.dlink.com/index.php?topic=42457.0)

• Was the router working before any firmware updates?

Internet Service Provider and Modem Configurations

• What ISP Service do you have? Cable or DSL?
• What ISP Modem Mfr. and model # do you have?
• Is ISP Modem/Service using Dynamic or Static WAN IP addressing?
• What ISP Modem service link speeds UP and Down do you have?
• Check cable between Modem and Router, swap out to be sure. Link> Cat6 is recommended. (http://en.wikipedia.org/wiki/CAT6)
• Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values (http://forums.dlink.com/index.php?topic=53008.0)

Reserve the IP address for the VoIP device then place this IP address into the DMZ. I use a ATT microcell and I haven't had any issues when using the DMZ. And I didn't disable the ALG option either, however test it out first...