We just ran into a problem of some Cisco phones not handling odd quirks of a Sonicwall FW yet the Polycoms handled it like a champ. I forget the model. The sad thing is we provide the internet service and some other ISP provides the SIP phone service. Since the SIP phone provider did not assist the customer in figuring out why there was a problem we got yelled at as the internet service provider who must be "causing the issue". It was not our Sonicwall either. The Sonicwall was delaying, from memory here, INVITES and they were coming in bursts after a delay. The Cisco phones consistently dropped the call afer 1-2 minutes, every single time. Polycom handled it gracefully. Grandstream left a bad taste in my mouth years ago and never tried them again. I forget why. It has been years. All Polycom here. matt at g4.net On Fri, 17 Aug 2012, Anthony Orlando wrote:
What type of issues are you all seeing with Cisco 5xx series phones?
______________________________________________________________________________________________________________________ From: Carlos Alvarez <carlos at televolve.com> To: Simon Lockhart <simon at slimey.org> Cc: voiceops at voiceops.org Sent: Friday, August 17, 2012 11:39 AM Subject: Re: [VoiceOps] Grandstream VoIP phones
On Thu, Aug 16, 2012 at 11:04 PM, Simon Lockhart <simon at slimey.org> wrote: According to our database, we have about 30,000 of the handsets configured in our voice platform. Everything from the BT-200's to the GXP-1200's, and most recently we've been deploying the GXP-140x's
We are primarily going to push the GXP-2124, 2100, and 1450. ?Is there a reason you haven't gone to those? ? We have had our fair share of software problems with them over the years, but Grandstream support is responsive, and we've had bugs we've found fixed within a few weeks.
That's important to hear. ?We've had few, but not zero, bugs with the Cisco phones. ?And support/fixes have been difficult.
-- Carlos Alvarez TelEvolve 602-889-3003
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