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New Member

SIP REGISTER fails after a few minutes spa122 with mynetfone

I have been battling with this for a while and realy appriciate some assistance.

I am having issues keeping my SIP regestration active, when I reboot my SPA122 SIP regestration is successful but after a few minutes the ISP (Mynetfone) sees my SIP connection as unregestered.

My setup is :

Modem - cisco 877

Cisco IOS Software, C870 Software (C870-ADVIPSERVICESK9-M), Version 12.4(15)T14, RELEASE SOFTWARE (fc2)

I think the following disables SIP ALG.

no ip nat service sip udp port 5060

My default Nat entry

ip nat inside source list 1 interface Dialer0 overload

Port Forwarding from my internal IP (SPA122) to my external IP Address.

ip nat inside source static udp 5060 5060 extendable

SPA 122 Config

Model: SPA122, LAN, 2 FXS

Hardware Version: 1.0.0

Firmware Version: 1.3.2 (014) May 9 2013

Line 1 config

NAT Mapping Enable: Yes

NAT Keep Alive Enable:  Yes

SIP Settings

SIP Transport:   UPD

SIP Port: 5060

EXT SIP Port: 5060

My SPA122 debug log

It seems ok according to the debug logs, when it deregesters I see nothing in the debug logs.



SIP/2.0 200 OK

Via: SIP/2.0/UDP;branch=z9hG4bK-395ceb2c;;rport=5060

Contact: <sip:xxxxxxxxxxx@>;expires=120

To: "xxxxxxxxx"<>;tag=fc76a20-co8398-INS001

From: "xxxxxxx"<>;tag=726ed78aab0c40b9o0

Call-ID: d8c7ee9d-80ea5bd0@


Expires: 120

User-Agent: ENSR3.0.6

Content-Length: 0

[0]RegOK. NextReg in 395 (1)

CC_eventProc(), event: CC_EV_SIG_REGISTER_OK(0x3A), lid: 0, par: 0, par2: (nil)

AUD_ccEventProc: event 58 vid 0 par 0x0 par2 0x0


New Member

Re: SIP REGISTER fails after a few minutes spa122 with mynetfone

I have finally got things working.

To isolate the problem the ISP suggested installing a softphone and try to register, this eliminates the spa122 from registering.

I installed X-Light, configured and it and it worked, so I then had a working modem Cisco 877 plus config and a phone config that works.

There was an issue with the spa122, hardware, firmware, config or a combination.

My plan was to update firmware if there was a new version available then factory reset the spa122.

I found 1.3.3(015) available so I updated the firmware, I was running out of patience so I also Restored Voice Factory defaults (Administration - Factory Defaults).

I then did the following config:-

Line 1

Proxy and Registration

Proxy:- "Proxy Server Name"

Outbound Proxy:- "Proxy Server Name"

Subscriber Information

Display Name:- Line1

User ID:- "My ID"

Password:- "My Password"

Auth ID:- "My Auth ID"

I left everything else default.

It is now working with no issues.

Was it worth going through this?????

I had a modem with built in ata and the voice quality was very poor, the spa122 has great voice quality and is now stable so I am very happy with it.