Skip to content

Troubleshooting

Always start from one real call: Ctrl K → paste the number → open the call. Its Routing and SIP tabs answer most questions.

Check How
Same user and password on both sides Re-enter the password on the gateway, or press Generate again and copy it
The gateway points at the right address The SIP server on the port must be the switch address we sent you
The gateway can reach the internet Open any web page from the gateway’s network
The port is turned on in the gateway Each line has its own enable switch
  • No row on Calls at all: the customer’s IP address is missing or different. Ask them which address they send from and add it.
  • They send to the wrong address: the customer must send to the switch address we gave you.

Open the refused call; it says why.

Reason Fix
Unknown customer Add the IP address to the customer
No route The routing group has no working terminator for this number. Check the sub-groups (ports outside a sub-group carry nothing once sub-groups exist)
Number list A blacklist matched, or a whitelist did not
Limit reached The customer’s limit, a port’s channel limit, or your plan’s limit was reached
Code Usually means
403 Forbidden The carrier does not accept your traffic: IP not allowed, or no credit with them
404 Not found The number does not exist, or the number format is wrong for that route
408 Timeout The port or carrier did not answer in time
480 Unavailable The called phone is off or out of coverage, or the SIM has no signal
486 Busy The called person is busy, or the port is already on a call
488 Not acceptable The two sides have no codec in common: see Codecs below
503 Unavailable The port or carrier is overloaded or down; Routyx tries one more terminator

Routyx handles G.711 (A-law and µ-law) and G.729, and can transcode between them. A 488 answer, or a call that fails straight after it is answered, usually means the customer, the switch and the port or carrier do not share a codec. Check the codec settings on the terminator and ask the customer which codecs their switch offers. GSM gateways usually work best with G.711 A-law or G.729.

The call connects but there is no sound, or sound one way

Section titled “The call connects but there is no sound, or sound one way”

Almost always the network in front of the gateway or the customer’s switch (NAT, firewall). On the gateway, check its NAT / public IP setting. Send us the call (see Support) and we look at the media path with you.

Calls are cut at the same length every time

Section titled “Calls are cut at the same length every time”

Check Maximum call time on the port or carrier. A call is cut when it reaches it.

  • The rule’s scope does not include that port.
  • The cooldown is still running from the last time.
  • The rule is switched off, or no channel is enabled for its alerts.
  • Preview the rule: it shows what it would have caught in the last 24 hours.